bagels parent
But they found him? If he was alive, he probably would have been caught eventually, no?
Maybe. The average homicide clearance rate in the US is only around 60%. But that includes a lot of killings where nobody really cares about anyone involved. This was a much higher profile crime so it would get a lot more attention. But there are high profile cases that get a lot of (at least local) attention that don't ever get solved either.
Sorry, to make my point more clear: They knew the identity of the killer, and this is part of how they found his dead body. If he hadn't killed himself, they would have found him regardless, since they knew who he was, and knew the license plate of the car he was driving.
It is really difficult to ascertain motive and suspects when it’s a chronic homeless case getting murdered. It could be a thing from drugs to just looking at a crazy guy wrong one night, you literally have no leads unless there is a video or some other piece of hard evidence. It isn’t really about caring, judt that the environment they live in is so chaotic and uncontrolled that you’d have a suspect pool that is too big to reasonably investigate.
I mean I guess all criminals die or are caught, yes.