If Tyler Robinson’s parents didn’t train him in the skills needed to become a long-range assassin, Charlie Kirk would almost surely be alive today.
Tyler came from a two-parent household. He had a good upbringing. Whatever you do, some people go crazy or/and get radicalized and want to kill someone. The more familiarity and access thay have with guns, the more likely they will succeed at murder, and the more likely they will even attempt it in the first place.