"We're talking about a rare serial killer. We don't get too many of them like this,” said Dr. Jack Levin. "This killer distances himself by using a firearm and more younger killers use guns,” he said.
Levin also said he gets a thrill from terrifying the community and ambushing his victims.
"This guy could conceivably change his location for his murders. He could change his victims. He might decide to strike when there's a group of people there. It ups the ante. He may be getting bored, getting away with murder,” said Levin.
The suspect a witness described to Tampa Police is a tall, thin black male, wearing dark clothes, a black ball cap or hoodie and carrying a large, black pistol.