Batman Vol.1 #427 (Newsstand Edition)
Jason meets his real mother, Sheila Haywood, but she turns out to be working for the Joker and allows her son to fall into his deadly hands inside of a warehouse; Joker beats Robin with a crowbar and leaves him for dead as a badly beaten Robin attempts to save his mom and himself from the dynamite left behind by the Joker as he leaves them both to a horrible fate; Batman watches in horror as the warehouse containing Jason and Sheila blows up, too late to stop the Joker.
Printed: Jan 1989
Writers: Jim Starlin
Art: Jim Aparo and Mike DeCarlo
Cover: Mike Mignola