G. Dep’s conscience got the best of him, and on Wednesday, he confessed to killing John Henkel in Harlem 17 years ago. According to the NY Post, The Deputy walked into the 25th precinct and gave details of how he committed the crime.

Coleman, who grew up in the projects, told cops he was riding a bike when he rolled up on Henkel, 32, on Park Avenue and East 114th Street and announced a robbery. Coleman told Detective William Dunn that Henkel resisted and grabbed his .40-caliber gun. He allegedly admitted that he pulled away and shot his victim three times in the chest.

The former Bad Boy artist was charged with murder and is currently being held without bail.

Dep didn’t know the victim died.

“I was surprised— for some reason, I really didn’t think that he died,” the bald and bearded Coleman said in a jailhouse interview.

“When they told me, I was like, ‘Oh, I’m not going home after this.’ ”

Manhattan DA spokeswoman Erin Duggan said Coleman, 36, has now been charged with murder in the case. He faces life in prison