Spawn #5 (1992)

Sometimes in our judicial system, bad men like Billy Kincaid slip through the cracks. Posing as an ice cream man, Kincaid lured children into his van and killed them. When Spawn learns that Kincaid has been set free, he remembers he once turned down a chance to kill the child molester. He does what the courts couldn't, passing his own death sentence on the pervert.