Cops: College Student Takes LSD, Then Beats His Girlfriend to Death 'He states (that) after a while things started to get weird' By Michael Harthorne, Newser Staff Posted Mar 23, 2016 1:48 PM CDT 82 comments Comments Police say a man took LSD with his girlfriend and walked around the University of Washington campus in Seattle before beating her to death last weekend. (Shutterstock) (Newser) – A 21-year-old college student in Seattle allegedly killed his girlfriend after getting high on LSD over the weekend, the Seattle Times reports. According to the Tri-City Herald, police say the suspect, identified as Casey Henderson, and 22-year-old Katy Straalsund took LSD Saturday and walked around the University of Washington, where they were both students. Things apparently took a turn when they returned to Straalsund's nearby apartment. “He did say that they never slept,” a Seattle Police Department detective wrote in the police report. “He states (that) after a while things ‘started to get weird.'" Henderson allegedly later told police he got paranoid and convinced that Straalsund was plotting against him, KOMO News reports. Police say a neighbor called 911 Sunday afternoon after hearing a man yelling "You wanna die?" and "I will kill you." Officers broke into the apartment and reportedly found Henderson strangling Straalsund. Police say he had already attacked her using techniques he learned in tae kwon do before they got there. Straalsund had no pulse when officers arrived and had no brain activity when she got to the hospital, where she later died. Henderson, who appears to have no criminal history, is being held on $1 million bail. He was expected to be charged with homicide Wednesday.