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MILLINGTON, Tenn. — Before joining the Tennessee Bureau of Investigation, Agent De’Greaun Frazier was a detective for the Millington Police Department.

He worked there for six years.

Officers who knew him broke down this afternoon.

Some even went to check on his family in Shelby County.

“This hits home. This hits home for our officers. They’re hurting. It was just difficult. It really is,” said Millington’s Public Safety Director Gary Graves.

Graves tried to find the words to comfort his department when he found out their long-time friend and former officer had made the ultimate sacrifice.

He was killed working an undercover operation in Jackson Tuesday.

“We have to lean on each other, lean on our faith and we will get through this,” said Graves.

Frazier joined the Millington Police Department in February 2010.

Later he became a K-9 officer and then a detective.

He left the force in February.

“The TBI saw the same qualities in Agent Frazier we saw as a Millington police officer,” said Graves.

Officers remember Frazier as a gentle giant, and the guy who’d walk down the hall and make you smile.

They said he had a passion for serving his community.

“He wanted to be that one that could make a difference in his community,” said Graves.

On Tuesday, Graves said a pastor met with officers.

Shelby County Sheriff’s Office brought in its stress team too.

It’s clear the department is hurting.

A dedicated servant, a husband, father, a man who will truly be missed.

“The family will forever have lost a husband, a father and a son, so they will never, so they will never overcome that,” said Graves.

Graves is asking for the community’s thoughts and prayers as his officers continue with their jobs during this tragic time.

Frazier was once a reserve officer for the Shelby County Sheriff’s Office.

They did not say when he was with their office, but sent prayers to his family and friends.

He also worked as a University of Memphis police officer.