Brock Turner said in a statement to probation officials that he was an "inexperienced drinker and partygoer," according to CBS News

In his statement, Turner said he was an “inexperienced drinker and partygoer,” prosecutors said. But that assertion allegedly conflicts with text messages and photos found on his seized cell phone, prosecutor Alaleh Kiancerci said in a sentencing memo, the Mercury News of San Jose reported. Kiancerci said the photos and texts pointed to Turner using alcohol in drugs while still in high school – long before the January 2015 assault.

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Among the evidence cited in the memo was a December 2014 video allegedly showing Turner smoking from a bong and drinking out of a liquor bottle, as well as numerous alleged references in texts to smoking, buying and sharing marijuana as early 2014, according to the Mercury News.

“The text messages also referenced doing acid or trying to find a ‘hook up’ to purchase acid both in high school and while at Stanford,” the prosecutor’s memo said, reported the Mercury News.

Further, an alleged text message from his sister in June 2014 read, “Did you rage last night?” In response, Turner allegedly wrote, “Yeah kind of. It was hard to find a place to drink. But when we finally did we could only drink for like an hour an a half,” the documents state, CBS News reported.

Turner was sentenced to six months in county jail for sexually assaulting the unconscious woman – a punishment many thought was too light. Prosecutors had asked for six years. A Change.org petition has been started asking for sentencing Judge Aaron Persky to be recalled.

Turner Allegedly Grabbed and Kissed Another Woman at Party

In addition to the alcohol and drug revelations, court documents also allege that Turner acted inappropriately toward another woman at the January party where he sexual assaulted the victim, according to ABC News.

A woman said that Turner grabbed and kissed her, without provocation, the documents state, per ABC. She pushed him away, but he allegedly returned later in the night and tried to kiss her a second time, the sentencing document said, according to ABC.

One weekend before the assault, Turner allegedly got “touchy” with a woman at a fraternity party, ABC reported the documents state. The woman said she was dancing with Turner, but felt uncomfortable when he allegedly began to put his hands on her waist, stomach and upper thighs. The incident, she told detectives, left her “creeped” out, according to the documents.

Turner was also previously arrested in 2014 for allegedly drinking underage on campus and then running from police, ABC said.