The Gemini Crew weren't sadists, but they were bullies and the Street can be cruel sometimes. Off-hand i can think at least three occasions where they got a little weird. They fucked up Andrei Katz pretty badly before killing him and allegedly slapped him in the face with his own dismembered hand before crushing his head in cardboard compactor. The murder of pedophile Mikey "Muscles" DeCarlo who was beaten and murdered before having a sawed off broom handle crammed up his ass. The double homicide of Muhammad Daoud and Ronald Falcaro when Freddie DiNome got carried away during their dismemberment and stuffed Daoud's penis into his own mouth after cutting it off. Those acts were pretty gruesome but are they on the same level as Jeffrey Dahmer, I don't think so. Gaspipe tortured Jimmy Hydell for a long time before putting him out of his misery, cruel but not on par with true serial killers.