Spider-Man (1990 Marvel) #28
"Something About a Gun" Part 2 of 2. Script by Don McGregor. Pencils by Marshall Rogers. Inks by Keith Williams. Cover by Marshall Rogers and Keith Williams.
The young boy -- who picked up the discarded gun last issue -- did not do so by accident! He's having trouble with a bully at school...and plans to use the firearm to get even! However the wondrous wall-crawler cannot let that happen. Spider-Man will do whatever it takes to find the boy...and the gun...before it's too late.