MADISON (WKOW) -- A former University of Wisconsin-Madison student has been bound over for trial in connection with a January stabbing death.
Twenty-year-old Adam Peterson faces one count of first-degree intentional homicide in the death of Joel Marino.
Assistant district attorney Corey Stephan on Friday played tapes of calls Peterson made from a Minnesota jail to his parents in which he confesses to killing Marino in a robbery.
"I just stabbed him out of nowhere," Peterson told his father, Melvin Peterson. Peterson also told his father he wanted to rob Marino; brought a knife into Peterson's home; did not know Marino; and was not under the influence pf drugs during the encounter with Marino, but felt "numb." In the other taped call, Peterson suggested to his mother if he had not attacked Marino, he might have harmed himself. In the taped calls, Peterson never explained why he singled out Marino's home.
Peterson's father, Melvin Peterson, can be heard telling his son he was not in his right mind.
Madison police detective Alix Olson testified Peterson confessed to investigators last month during an interrogation in Minnesota he killed Marino, but gave no reason for why he did it.
Both Peterson's father and Marino's father, Lou Marino were in court during the playing of the jail recordings. Marino was visibly upset as he listened.
"It's hard to be in the same room with someone who murdered your son, that's for sure," Marino told 27 News after the court hearing.
Defense attorney Dennis E. Burke didn't challenge the content of the calls and entered a not-guilty plea on Peterson's behalf.
Peterson sat in court but showed no emotion.
(The Associated Press contributed to this report)