Ravencroft Institute

Ravencroft Institute is a prison set up by the US government to house the criminally insane.

Doctors

 * Tanis Nieves

Released/Escaped

 * Carnage
 * Shriek

Maximum Carnage
After Carnage is recapture after a murder spree in New York City he is sent to the Ravencroft Institute. The guards believe that Cletus Kasady's Carnage identity was a mere sham until the symbiote comes out and frees him from the straps he was bound by. He then murders all the guards and doctors (although they tried to help him) and leaves the prison unguarded and the criminals running lose. He also meets Shriek, a woman that has super sonic screams and is infatuated with Carnage. They then head to New York City to start another murder spree.

This leads to the fourteen issue cross-over between The Amazing Spider-Man, Spider-Man Unlimited, The Web of Spider-Man, Spider-Man, and Spectacular Spider-Man, that would feature Marvel characters from other series. The cross-over was entitled "Maximum Carnage.

Carnage
The facility becomes bought out by Halltech and the new owner Michael Hall ensures Shriek is moved from the facility here to the main Halltech facility. Tanis Nieves became Head Doctor here when Shriek was incarcerated into the facility.