38-year-old Justin Barkley appeared in court on Monday to offer a plea in connection to the December 8 incident, which reportedly occurred in the parking lot of an Ithaca Walmart.
The victim, William Schumacher, was on his night shift and had stopped at the store at roughly 1 a.m. to get something to eat.
Police followed the alleged assailant to his home, and, after an 8-hour standoff, took him into custody.
According to the Ithaca Voice, at the plea hearing, Barkley said, "I shot and killed Donald Trump purposely, intentionally and very proudly."
When asked if it was possible that he had fatally wounded someone else, he replied, "I hope not."
Though Barkley attempted to plead guilty to 2nd degree murder, the judge declined to accept, instead ordering the suspect to undergo a psychiatric evaluation.
Barkley is scheduled to return to court on January 6.