In which issue did this fictional superhero in the DC Comics Universe, who was killed by Captain Cold, make his first full appearance?
Captain Cold:  He also has served as a bitter enemy to the Silver Age Flash Barry Allen, both enemy and grudging friend to the third Flash Wally West, and one of the killers of the fourth Flash Bart Allen. Bart Allen: Bart Allen is a fictional superhero in the DC Comics Universe . Bart Allen:  The character first made a cameo appearance in "The Flash" #91 in 1994, while his first full appearance in issue #92, and appeared as the lead character in "Impulse" (1995–2002) and "The Flash: The Fastest Man Alive" (2006–2007).
issue #92