In those slayings, the police said, the killer broke into the apartments through windows or sliding glass doors, mutilated most of his victims and posed their bodies in shocking ways.

A hired killer who could no longer hold a weapon steady enough to kill would look for other ways to make money and could pose a small threat.

In at least one case the killer decapitated a victim, posed the bodies in grotesque fashion and removed skin and body parts from the scene.

The killer poses as a taxi driver, and abducts and kills those who get in his taxi.

Officials refused to confirm or deny reports that the killer posed as a police officer.

Kurdish officials said the killers posed as peace negotiators and lured the minister to a quiet setting, then shot him as he was completing a letter to Ansar ending with the traditional Kurdish sign-off, Live Always.

During the mass shootings the killers proudly posed for photos and sent them home to their wives and kids.

But to suspended sub-inspector Sanjay Shelar (Kay Kay Menon), this killer poses an opportunity.

Investigators had long suggested that the killer might have posed as a police officer.