When we look at motive, it's usually personal or totally random. If it's totally random, then usually the goal is not murder, but robbery or car jacking, etc. The only possible reason I can think of a person randomly murdering Jared like this would be to steal his car, but they didn't and then we know the baby was in the back so maybe just shock at seeing a child there, so he fled without stealing anything.
Now we know that there is a connection with the ex's husband now and this man charged so I think the possibly of the above scenario being true is just about zero, but it's the only thing I could come up with for why a totally random murder like that would happen without there being any other connection. I think we will find out soon that this was exactly what many of us thought all along.
