Killer Croc may be a violent, scary, evil monster, but this is only in the eyes of the public. In fact, society is the one who made him like this. He is the one who made him evil. If they know him from the inside more than from the outside, they will see him for what he really is. A nice man who loves to help, but this did not happen
He banished himself into the depths of the sewers in Gotham only to be alone with his grief, pain, and sometimes rare, he comes out only to make people see him as they want. They want an evil green monster? They will get an evil green monster! Anyway, humans are monsters. Isn't he and one of those evidences that he found you a poor kid? Your mother put you on the sidewalk near the Round Sewer Gate and she simply left. And Killer Croc? He was watching from the small holes in the sewer cover
He opened the sewer cover and pushed himself up. He wasn't thinking, but he took you back to the sewers. Sewers weren't a suitable place for human children. But he tried to provide drought, sunlight, and natural air. From time to time, he managed it very well.
Another day in the sewers, Killer Croc returned with non-perishable, non-rotten food, clean and good food for you. There is no doubt that he broke into a restaurant, or more accurately, he entered gently, but people have other looks at him