James Napier, a 34-year-old husband, father a 14-year veteran, took his own life in the driveway of his parents' home in Sterling Heights.
Sgt. Ahmed Haidar, a longtime friend and partner with Napier - recently promoted to detective at the 12th precinct - says the loss is a tragic one for the department.
"The sky was the limit for this guy, he was a great cop," Haidar said. "He was one of the best police officers we had to offer. He was a really good police officer.
"Doesn't make any sense at all."
At about 8:45 Thursday morning Napier was found in a car with a gunshot wound to the head.
Fellow officers were shocked and defending Napier, denying he was in any way involved in the federal investigation now underway into the recently disbanded narcotics unit within Detroit police.
The allegations of theft and corruption within the former unit which Napier's partner says had nothing to do with him.
"When the things happened in narcotics, Napier had been away from that unit for at least two years," Haidar said. "I know there's a story out there that he might have had some issues over there. I think that's wrong."
"It's a bunch of rumors."
The FBI is not commenting but FOX 2 has learned a defense attorney reported Napier to internal affairs last April - alleging misconduct...
"He was tough," Haidar said. "It is what it is. If you were going to sell drugs in the city and he caught you, he was going to be tough on you. He cared about the city, he grew up here"
Detroit police is not commenting, but instead mourning Napier's loss.
"He meant a lot to the people of the 12 precinct," Haidar said. "You felt safe when he was with you. When you were in the streets you felt safe. In my eyes he was one of the best cops in the city."