Investigators have said that Michael was killed when the driver of a vehicle he stopped for a traffic violation in Clinton Sunday jumped out and shot him.
According to a press release, Noble threw the rifle into a body of water north of Clinton, Mo. knowing that the weapon was used in the crime and meant to hide it from investigators. Police say Noble acted like he was visibly upset and faked crying.
The officer told him he knew the answer to his own question.
Noble is being held on a $25,000 cash-only bond.
Police say he then changed his story and admitted he bought the gun for McCarthy who had asked him to do so. When asked why he was behaving that way, he told police he had sold the gun to McCarthy. He was unarmed when taken into custody about 20 miles away from the murder scene, police said.
Police say Officer Michael shot and injured McCarthy during their exchange of gunfire that ultimately killed Michael. Noble provided police a written statement about selling the firearm to McCarthy.
Police asked Noble if he knew where the gun now was.
They say Noble told them he arrived home on Monday, Aug. 7th, at about 2:00 a.m., and found the rifle leaning against the inside doorway of his house.
As part of the investigation into Michael's killing, officers went to talk to Noble at his home in Clinton on Thursday morning, according to the affidavit filed to support the charge against Noble.
The probable cause statement does not address how Noble knew McCarthy and Missouri State Highway Patrol spokesman Bill Lowe said Thursday the relationship was unclear. He said he panicked, told his wife he was taking the trash out, and drove north out of town with the gun.
The prosecutor said he's considering more charges against Noble and whether to seek the death penalty against McCarthy.
Suspect Ian McCarthy was caught Tuesday night.
Investigators have said it's possible that other people helped McCarthy by giving him a ride or clothes.