Are some humans just born evil/bad or made that way?

We all have a conscience, but does It guide us all?..I think not! but we know what Is right and what Is wrong but so many people are attracted to doing unspeakable things, and often try to justify those bad things, usually It’s someone else’s fault In some way, have human’s become so desensitized with all the violence on T.V or Is It something much deeper… people are not robots we can think, make decisions, we could all commit evil, but many of us would not! we know It’s wrong, so If someone chooses to do something really bad, It makes me wonder If they are just born bad or made to become that way, now the word bad means different things to different people, I’m just asking the question. Are some humans born bad?...your views…