John Erickson was a scientist that worked for GothCorp.
History[]
Erickson was a pioneer in sonic research at GothCorp. One of his projects there was a hypersonic bomb. On New Year's Eve, he was surprised in his office by the Joker, who killed him with the doctor's own hypersonic weapon. Joker then stole the sonic weapon, but he was stopped by Batman before it was too late.
Reference[]
The New Batman Adventures
- "Holiday Knights" (Cameo in photo)