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Want to investigate cold cases? Join me Sunday evening for a discussion on my upcoming course at @AmericanMilU

Join me and the AMU Criminology Club next Sunday, 3/22 , 9pm EST/6pm PST to discuss the launch of my cold case investigations course. You don't have to be a full time student to enroll in it. Link below to join us Sunday. @jenbucholtzCCI @AmericanMilU teams.microsoft.com/meet/230881381…

Part 2 of my conversation with Patrick, host of the Cops and Writers podcast. Had a great time discussing various homicide cases I've worked on. @jenbucholtzCCI @AmericanMilU youtu.be/E12bOx5st_Y?si…

We are still looking for more people who knew Towana and Darwin. Please help my agency spread the word on this unsolved 1988 murder that we are working hard on. #breakthecase

@Ancestry I see you answer civilian users of your site but not these hard questions that affect LE. Your updated TOS are so confusing. You need to provide clarification.

There is literally no one who is an expert in the kidnapping of an 84 yr old under these circumstances. All you wanna experts, STOP IT. You're just traumatizing Nancy's family that much more. And many are engaging in defamation with false accusations 😡😡😡

@Catch_LISK I'm so concerned thinking about how many more victims he has. 😢 The use of burner phone (why, if he has nothing to hide?) and how many contacts he made with sex workers, etc makes me shudder.

Suspected Gilgo Beach killer Rex Heuermann contacted sex workers hundreds of times, viewed sadistic killings of women online, DA says.. Accused Gilgo Beach serial killer Rex A. Heuermann contacted at least 60 sex workers more than 500 times in the four years leading up to his 2023 arrest, prosecutors alleged in a Tuesday court filing that provides the most detailed account of the case against the Massapequa Park resident to date. The district attorney's filing also reveals that investigators found Heuermann had searched for images of family members of alleged victims "mourning the deceased" before his arrest. Other searches made under an email account tied to one of Heuermann’s cellphones include attempts to access pornographic "snuff" films depicting murder and "bruised and impaled women," the court records show. A Suffolk police detective concluded that more than a thousand Heuermann searches reviewed by investigators established there was "clear evidence" he was a "sexual sadist" receiving pleasure from the physical and psychological pain of others, according to the motion. Prosecutors, who have long said Heuermann’s persistent contact with sex workers played a role in the timing of his July 13, 2023 arrest, also disclosed in the new court records that Heuermann was making recurring payments to the online dating app Tinder. “[Heuermann’s] modern day use of burner phones to patronize prostitutes is probative ... of [his] modus operandi," Assistant Suffolk County District Attorney Andrew Lee wrote in the motion filed Tuesday. Court imposed deadline. The filing comes as prosecutors faced a court-imposed deadline to respond to a defense motion seeking to suppress evidence at trial, including search warrants used to obtain cellphone and email data for accounts Heuermann allegedly created in the years after his alleged crimes. Heuermann, 62, of Massapequa Park, is set to stand trial in September for seven killings he is alleged to have committed between 1993 and 2010. Prosecutors focused heavily on two phones in the filing, one of which they previously disclosed was in Heuermann’s possession at the time of his arrest, which they say he registered under aliases and used almost exclusively to contact sex workers. One phone they allege was used to contact numbers associated with 56 sex workers and massage parlors over 300 times between January 2021 and March 2022. Another phone the Manhattan architect allegedly kept active until February 2023 made contact with 61 "prostitution-related" numbers more than 220 times before his arrest. Evidence obtained from search warrants show those phones were kept in proximity to a phone registered in Heuermann’s actual name at all relevant times, the filing reveals. Lead Heuermann defense attorney Michael J. Brown, of Central Islip, said he had not yet had an opportunity to fully review the district attorney’s response — which was submitted to the court minutes before the close of business Tuesday — and he declined to comment late Tuesday night. Prosecutors ultimately argued that State Supreme Court Justice Timothy Mazzei should deny all nine suppression requests Heuermann made in a Jan. 13 filing. “[His] motion is premised upon a selective characterization of the record that does not fully reflect the evidence," Lee concluded. "When the facts are considered in their entirety and in their proper context, there is no legal or factual basis to grant the relief requested by the defendant." If any hearing should be granted, prosecutors argued, it should be limited to the admissibility of prior uncharged acts they may seek to introduce at trial. Charge dismissal request. One of the relief requests made by the defense includes asking the judge to dismiss a second-degree murder count charging Heuermann in the 1993 killing of Sandra Costilla in North Sea. Prosecutors argue that Heuermann’s contention that the grand jury presentation regarding Costilla was insufficient is without merit and relies on "an exaggerated characterization of the facts." Prosecutors say the grand jury was presented with DNA evidence linking both Heuermann and a former wife to hair found at the Costilla crime scene and was aware of evidence that Heuermann kept mementos from all of his killings. "The grand jury could have rationally drawn the inference that defendant’s possession of the 31-year-old Nov. 22, 1993 edition of Newsday, in pristine condition, was no coincidence, but a pattern that points to defendant possessing these publications as souvenirs or mementos of his crimes, serving as a reminder of the events that occurred throughout the murders of each victim," Lee wrote. Prosecutors also contend that by arguing investigators violated privacy laws when they obtained DNA evidence linking Heuermann to the crime scene through a discarded pizza box and drink bottles, that the defense is conceding Heuermann was the contributor of those samples, which later matched a court-ordered swab of the accused killer. Prosecutors also urged Mazzei to shoot down a request made by Heuermann’s defense to obtain potential statements made with immunity by former Suffolk County Police Chief James Burke, who they intend to introduce as an alternative suspect at trial. While prosecutors do not deny that such an agreement exists following his 2023 misdemeanor arrest for indecent exposure, they argue the case has no relevance to the prosecution of Heuermann. Hundreds of thousands of discovery pages. Prosecutors have to date turned over 630 pages of discovery related to Burke, who was also previously convicted in a federal corruption case, to the Heuermann defense, the filing shows. To date Heuermann has received 715,000 pages of discovery in the case, including 65,000 pages related to investigations of other persons of interest in the alleged killings and more than 33,000 pages of potential leads called in by members of the public, the prosecution’s reply reveals. Prosecutors say they have also provided the defense with a 99-page list of potential civilian witnesses, and a 48-page list of law enforcement and five-page list of experts witnesses who could be called to testify. Prosecutors do not intend to introduce any statements Heuermann made to police following his arrest, dismissing them as self-serving, the court records show. The defense to date has not turned over any discovery, prosecutors noted, urging Mazzei to order them to do so within 60 days of his ruling on the suppression motions. The judge previously said he intends to rule on the remaining issues when Heuermann returns to court March 17. Heuermann was first indicted in July 2023 on first-and second-degree murder charges in the killings of Melissa Barthelemy, Amber Lynn Costello and Megan Waterman, who were killed between 2009 and 2010. He was later indicted for second-degree murder in the 2007 killing of Maureen Brainard-Barnes, Jessica Taylor in 2003, Valerie Mack in 2000 and Costilla in 1993. He has denied any involvement in the killings and has pleaded not guilty to all 10 charges. @GrantParpan newsday.com/long-island/cr…

Big thanks to Patrick O'Donnell of the Cops and Writers podcast for having me. Great reminiscing about my time in tbe military and early career. @jenbucholtzCCI iheart.com/podcast/269-co…

Come join me this fall for a brand new Cold Case Investigations course at @AmericanMilU. I designed it for both active LE and civilian investigators. Bring your passion case to class and let's work on it. Info below. #breakthecase

@Ancestry has really crippled us in law enforcement as they've banned us entirely from their site. Read more below and please share your opposition. Their new terms will surely stall countless cases and victims and their families will ultimately suffer.

Honored to have been interviewed by @GameOfCrimes recently. We talk cold cases and investigations. @jenbucholtzCCI @AmericanMilU iheart.com/podcast/269-ga…

@BrianEntin I doubt this. They likely went straight to a private lab for testing versus using the FBI which is slow and antiquated. The FBI probably would have gone to a private lab as well so Pima just cut out the middle man.

I have learned as recently as last night the Pima County Sherif’s Office was not sharing critical information with the FBI.

@seeingthings44 @jenbucholtzCCI @PodcastMC Thank you! This list of ideas is really helpful!

@BreakTheCaseNP @jenbucholtzCCI @PodcastMC Maybe updates on developments pertaining to Rebecca’s killer, the consequences of the recent Ancestry decision, anything on Linda’s case that you can speak on, any upcoming investigations, the challenges of investigating cold cases, comments on current cases of public interest

George and I are honored to appear at "Beyond the Crime" in ABQ, NM Apr 11-12, 2026. We'll have a podcast booth and will record an episode in front of a live audience. We'd love to connect with anyone attending and talk cases! @jenbucholtzCCI @PodcastMC beyondcrimeconvention.com

@seeingthings44 @jenbucholtzCCI @PodcastMC I'm sorry it's been so long. Stuff going on in Linda's case we can't divulge yet. If you have ideas for our live recording, let us know. We don't have a plan yet on what to discuss!

@BreakTheCaseNP @jenbucholtzCCI @PodcastMC It'll be great to hear you 2 podcasting again

Big thanks to @SwordAndScale podcast for inviting George Jared and me to discuss Rebekah Gould's murder case and the potential of her killer having additional victims. Please listen and share. @jenbucholtzCCI iheart.com/podcast/272-sw…

Outraged at @Ancestry banning law enforcement from using their site? If so, please contact your state representatives to let them know that Ancestry's actions are deeply offensive and unacceptable and will surely result in UHR remaining unidentified. @jenbucholtzCCI

Incredible news in the Colonial Parkway murders. Our teams thoughts are with Cathy's and Becky's families on this difficult day. @MurderOver @jenbucholtzCCI wavy.com/news/local-new…

@Catch_LISK Literally laughable.

I admit, I chuckled at this from the #OmnibusMotion “Because Mr. Heuermann did not knowingly or intentionally abandon, relinquish, or consent to the seizure and forensic exploitation of his deeply revealing genetic identity, h e has standing to contest the warrantless seizure and harvesting o f his DNA profile from the bottles, pizza crust and napkins.” Lets hear more about his “deeply revealing genetic identity” He knowingly threw out the crust. #AbandonmentSample for the win.. Word of advice: if you’re a serial killer, eat your crust..otherwise you’ll go to jail and won’t have any butter…

Big thanks to @coldredpod89854 for inviting me back to their show to discuss our team's work on the murder of Linda Malcom. Please listen and share. @AmericanMilU @jenbucholtzPI @PodcastMC iheart.com/podcast/338-co…