The detectives take the case of a homeless man who was shot and killed thinking it will be a simple case.

The detectives take the case of a homeless man who was shot and killed thinking it will be a simple case.

Mamadou Berry is horrifically murdered, Quinn and Velazquez set out to find his killer. The yearlong investigation pits the detectives against the International Robbin Crew, a ruthless Atlanta gang.

Mamadou Berry is horrifically murdered, Quinn and Velazquez set out to find his killer. The yearlong investigation pits the detectives against the International Robbin Crew, a ruthless Atlanta gang.

Mamadou Berry is horrifically murdered, Quinn and Velazquez set out to find his killer. The yearlong investigation pits the detectives against the International Robbin Crew, a ruthless Atlanta gang.

Mamadou Berry is horrifically murdered, Quinn and Velazquez set out to find his killer. The yearlong investigation pits the detectives against the International Robbing Crew, a ruthless Atlanta gang.

Mamadou Berry is horrifically murdered, Quinn and Velazquez set out to find his killer. The yearlong investigation pits the detectives against the International Robbing Crew, a ruthless Atlanta gang.

Mamadou Berry is horrifically murdered, Quinn and Velazquez set out to find his killer. The yearlong investigation pits the detectives against the International Robbing Crew, a ruthless Atlanta gang.

Mamadou Berry is horrifically murdered, Quinn and Velazquez set out to find his killer. The yearlong investigation pits the detectives against the International Robbing Crew, a ruthless Atlanta gang.

Detectives Quinn and Velazquez are chosen to take on the case of Apriel Allen, a woman who was murdered in her apartment two years prior. The detectives start over and hope to bring some peace to her family and friends.

When Quinn and Vince investigate the shooting of Antwan Curry, they find a trail of blood, meaning that someone else was here. Was it another victim or the killer?

When Quinn and Vince investigate the shooting of Antwan Curry, they find a trail of blood, meaning that someone else was here. Was it another victim or the killer?