Brendt Christensen charged with kidnapping and possibly murdering Yingying Zhang is also suspected of frequenting Sup Forums given his online posting history, an untimely Sup Forums Sup Forums thread prior to his arrest, and his steam account:
Federal authorities have arrested and charged a 28-year-old man with kidnapping Yingying Zhang, a visiting scholar at the University of Illinois who disappeared three weeks ago and now is presumed dead.
Brendt Christensen, a former Ph.D. candidate who had studied physics at the university, was arrested late Friday (~9pm), according to the Department of Justice. A federal complaint also was filed Friday in the Central District of Illinois accusing him of kidnapping Zhang from the Urbana-Champaign campus the afternoon of June 9.
Authorities also searched Christensen’s home and seized electronics, including his phone, according to the affidavit. The phone’s search history revealed visits to a bondage and sadomasochism fetish website called FetLife and a forum called "Abduction 101," as well as subthreads titled “Perfect abduction fantasy” and "planning a kidnapping," according to the affidavit. The searches to those websites had occurred several weeks before the alleged abduction, around April 19.
On June 29 the day before he was arrested, Brendt admitted in an undercover audio surveillance of admitting to kidnapping and holding Yingying against her will in his apartment.
Sup Forums thread suspected by Brendt Christensen, posted on Jun 27 10am (note this was the only thread before his arrest on all of Sup Forums, additionally users remarked how this thread seemed out of place): archive.4plebs.org
Suspected reddit user account (unverified, last activity Fri 6pm): reddit.com
Suspected steam user account (unverified, last online Fri 9pm): steamcommunity.com
Brendt in high school (guy with long hair): youtu.be