At his arraignment in the 34th district court in Romulus Friday, DeAngelo Lamar Davis appeared via video conference from Wayne County Jail and entered a plea of not guilty.
Davis is being charged with first degree murder and other charges for the shooting death of Wayne State University officer, 29-year old Collin Rose.
Davis is a previously convicted felon also facing several weapons charges.
Wayne State Police Chief Anthony Holt said it's not yet clear what led to Officer Rose being shot during a traffic stop in Detroit on Tuesday.
"We're still trying to put all those pieces together as to why this took place, why he shot Officer Rose, why Officer Rose actually stopped him. We're going through that process now," Holt said.
The Detroit Police homicide task force is currently investigating. Holt says the murder weapon has not yet been found.
Rose reportedly died from a gunshot wound to the head sustained during a traffic stop on Tuesday. He was taken to the hospital and died after undergoing surgery.
Holt does not consider the death of Officer Rose to be related to other killings of police officers in Dallas, San Antonio and other cities.
"I don't relate this incident to the national wave of violence against police officers," Holt said.
Davis is due back in court December 16th.
Shanon Banner, a spokesperson for the Michigan State police, said in an email that nationwide, law enforcement officials have been encouraged to maintain a "heightened state of alert".
"As far as Michigan State Police," Banner said, "our troopers are trained to be prepared for anything on any traffic stop. The 'routine' traffic stop is a misnomer."