Article continues below advertisementSean "Diddy" Combs was nearly attacked in his sleep while behind bars.According to his longtime friend Charlucci Finney, a fellow inmate at Brooklyn's Metropolitan Detention Center somehow snuck into the rapper's cell with a shiv, resulting in Combs waking up "with a knife to his throat.""I don't know whether he fought him off or the guards came," Finney noted. "I just know that it happened."Article continues below advertisementSource: megaSean 'Diddy' Combs' friend claimed a fellow inmate broke into the star's cell with a knife.