A man was charged with second-degree murder Monday in the death of a young woman who was dressed as the villain Poison Ivy when she disappeared from a Halloween party in southeastern Michigan in 2014.

Chelsea Bruck's remains were found in a wooded area six months after the party in Monroe County's Frenchtown Township, 35 miles south of Detroit, and a few weeks after her costume was discovered elsewhere.

Daniel Clay, 27, of Newport was arrested Friday at his girlfriend's mobile home. He appeared in court Monday, asked for a lawyer and didn't object when a prosecutor urged a judge to keep him locked up in jail.

"I don't want a bond," Clay said.

Bruck, 22, had been struck in the head, according to the autopsy.

"We have no evidence or reason to believe that the killing of Chelsea Bruck was premeditated," assistant prosecutor Michael Roehrig told The Monroe News in explaining why Clay wasn't charged with first-degree murder.

Bruck's mother and other family members sat in the front row during the arraignment.

Sheriff Dale Malone said Clay has disclosed details to investigators that only the killer would know.

His girlfriend, Kelli Richter, said Clay called her from jail.

"He told me it was an accident, and he told me exactly what happened," she said. "It's just crazy. You think you know someone, but you really don't."