I understand that things film

1.He says his name is "Cameron Poe" So pinball says his name familiar to him, then diamond dog says he heard that he killed a large black man, Poe admitted that he killed him because he took his cherry Jell-O, how they got it?

2.What sentenced Baby O? (Friend of Cameron) is a killer I do not think that is seen in the film as a relatively good person prisoner.

3.How killer Garland Greene spends as Las - Vegas (see he changed his clothes) and is not considered to be an escaped convict? Maybe because he was the addition of some "last minute?