Evan Jolliff, who knew both men and shared a suite with Murray, said Murray had asked other students to take him to the store during the past month.
Jolliff said his friend, who also lives in the Pesagi Hall on campus, had an altercation with Murray earlier in the semester and that some hard feelings lingered between the two.
“He asked me, my roommate and my friend to take him to Walmart, but we didn't,” Joliff said. “It's kind of scary.”
Wyatt Freeman, who got into a fight with Murray in October, told campus police officers he was afraid of the Murray, according to a police report.
“He wants Murray moved out of the dorm or at least away from his room,” the report states. “He stated that he is concerned that Murray may try to blow him up and made reference to Murray having the ‘anarchist' manual in his room.”
University spokeswoman Amy Ford said the incident didn't stick out to administrators at the time.
“It was nothing unusual, you know, for young guys in a college dorm,” Ford said.
Dean wrote in the search warrant affidavit Murray admitted to investigators that Sanchez wasn't his first target.
“Murray … advised that he had been planning this for weeks, and there had been previous failed attempts in doing so,” Dean wrote.
James Brown, described as a suitemate of Sanchez, told investigators Murray stopped by the victim's dorm room about 9:30 the night of the killing.
“Sanchez was leaving his dorm room when he was met at the door by Murray,” Dean wrote in the affidavit. “Murray asked Sanchez if he would give him a ride to Walmart in exchange for gas money. Brown advised Sanchez agreed to give him a ride, at which time they both left the room.”
An inventory of items removed from Murray's dorm room includes two laptop computers, a medical bill with Murray's name on it and his last will and testament.
Dean wrote in the search warrant affidavit that investigators were seeking a copy of the “Anarchist Cookbook,” but it wasn't listed on the inventory of items removed from the dorm room.
Murray is in the Pottawatomie County jail. No bail has been set.
Court records show he is due in court Jan. 8 for a hearing.