HOUSTON -- The 20-year-old college student accused of stabbing more than a dozen people on a Harris County campus this week has told investigators that he fantasized about cannibalism and necrophilia and about cutting off people's faces and wearing them as masks, according to an affidavit released on Thursday.Dylan Quick also told an investigator that he had researched mass killings on his home computer about a week before the attack Tuesday at Lone Star College in Cypress, according to the search warrant affidavit."He stated that he had read numerous books about mass killings and serial killers which are also located at his residence," the affidavit said.Quick is jailed without bail facing charges of aggravated assault with a deadly weapon.Only one of the 14 people injured remained hospitalized Thursday, and was in good condition, officials said.Quick's attorney, Jules Laird, said after a court hearing Thursday that he was looking into his client's background. Quick was on suicide watch and will stay in jail as he undergoes a psychological evaluation, Laird said."Not every question has an answer that satisfies you or that says this is the root cause of why he did this," Laird said. "We are going to see if we can reach that."The affidavit listed nine items that were seized from Quick's home, including one listed as "Hanibal Lecter Mask." Hannibal Lecter is the cannibalistic serial killer in books and films including The Silence of the Lambs.Other items seized included a laptop, an animal dissection kit and several books, including ones called Hit List and Hitman. The affidavit does not say what the books are about.Laird described Quick as a voracious reader who had thousands of books.The affidavit said Quick told the investigator that in preparing for the campus attack, he had sharpened various things, including a hairbrush and pencils, to use as weapons. However, authorities have said Quick used only a razor utility knife to slash at people on two floors of the college's health science building. A scalpel was in a backpack he was carrying when he was arrested.Authorities have said students tackled Quick and held him down outside the building until police arrived.Quick had been set to make his first court appearance Thursday, but Laird waived the reading of the probable cause statement so his client would not have to be in court. Quick's next hearing is May 10."We just didn't want to have a media circus," Laird said.Quick was home-schooled for most of his life and enrolled at Lone Star in part so he could be around other people and "get some type of feel for what the rest of the world is like," Laird said.Quick's parents hadn't had any major problems with their son, he said.Apparently, he did cause them some concern for a few days in January 2011. Quick's parents contacted Texas EquuSearch, a private Houston-area group that searches for missing people, after getting a text message from their son saying "he was leaving because he might possibly harm himself," said Frank Black, a case adviser with the organization.Black said he and others with his group were set to begin a search for Quick when his parents contacted them three days after the initial report, saying they had found their son.