Gets electrocuted along with Gordon and several others. Bought batcable rope from now-defunct company with poor quality control. Isn't actually rated for 300 lbs. Rope snaps while crossing between two 40-story buildings. Drives bone splinters into brain.
Poor ventilation leads to carbon monoxide poisoning and eventual death by suffocation.
Brain aneurism while hosting big charity fundraiser at Wayne Manor. Tips over, face first, into soup tureen, and is left there until the coroner takes the body away. Lots of pictures get taken. 0. Justice Leaguers all get drunk on generic rum. Only Supes lives.