Palmer, a third-grade substitute teacher at Sullivan STEAM school in Minneapolis, was busted during an undercover child sex sting conducted by citizen "child predator hunter" Alex Rosen. Palmer arrived at Brackett Park with the intention to meet a 13-year-old boy for sex, along with his father, according to Rosen, who claimed Palmer came with a flash drive that included more than 4,000 child pornographic images.
Palmer arranged the encounter with the person he believed was a minor boy, corresponding with him via text messages. However, the boy was Rosen posing as a 13-year-old child. After Palmer arrived at the park, Rosen confronted him and reported Palmer to authorities, resulting in the Minneapolis Park Police taking him into custody.
"At approximately 3:45 pm, Wednesday, May 14, Park Police responded to Brackett Park on a report of a person who had arranged to exchange explicit images involving minors. Officers arrived on the scene and took the adult suspect into custody," Minneapolis Park Police Public Information Officer Sommers said in a statement to The Post Millennial.
Video footage of the encounter shows Palmer being cuffed by police, with an angered expression on his face as Rosen reported what was happening at the scene. The educator was then placed into the back of a police vehicle for transport.
Rosen told The Post Millennial in a statement that he was able to bust Palmer with the help of a law enforcement source, and revealed that Palmer was allegedly previously under investigation for child sex crimes, but the Minneapolis Police Department declined to pursue.
"We aren't vigilantes. We don't take the law into our hands. We're concerned citizens who notice evidence of crimes, gather evidence, and report it," said Rosen. "I got good word from a confidential law enforcement source that there were two previous inquiries into Preston in 2014 and 2020 for child porn, but Minneapolis PD declined to pursue. Law enforcement had the info, but there was no action done until we came into play."

Palmer was booked into Hennepin County Jail without bail
Screenshots of alleged communications shared with The Post Millennial between Palmer and Rosen's decoy reveal that the leftist educator allegedly claimed that he was sexually attracted to kids ages 5 and up, and admitted to grooming underage boys because it sexually excites him. Additionally, Palmer mentioned allegedly possessing 87 GB of child sex abuse videos, which he said he liked to share. He also allegedly spent a significant amount of time sending adult material to the child decoy and encouraged the minor to participate in sexual activity with him, according to the text exchanges.

Palmer is allegedly the person communicating in the grey text, while Rosen's decoy messages are in blue


Palmer has a history of radical leftist social media posts seeking the abolishment of law enforcement. In 2020, Palmer pressured Minneapolis Public Schools to cut ties with Minneapolis Police in order to "protect" children, claiming the MPD was a "white supremacist terrorist organization." He has a similar"> ideology to Antifa, according to his social media. Palmer has also expressed"> severe hatred of journalist Andy Ngo, senior editor of The Post Millennial.
The Post Millennial reached out to the Sullivan STEAM School for comment, but did not immediately hear back.