amuck

wildly; without self-control

• “when the restaurant caught fire the patrons ran amuck, blocking the exit”

in a murderous frenzy

• “rioters running amuck and throwing sticks and bottles and stones”

in a murderous frenzy as if possessed by a demon

• “the soldier was completely amuck”
• “berserk with grief”
• “a berserk worker smashing windows”