Skulls

The Skulls gang is a group of criminals led by Dennis Carradine, otherwise known as Spike.

History
After Spike killed Ben Parker and stole his car, the Skulls escaped to a warehouse. Spider-Man then took most of them down and grabbed Carradine, when he realized he was who he had let by him earlier. He then dropped him out of the window and was injured. He was then sent to Ryker's Island along with the other Skulls.