We're all sentenced to death. If that's all there is, he got away with it.
But if that isn't all there is, and his victim is actually still alive in Heaven, then did he actually kill anyone?
So your belief is triggered by your sense that some crimes are so bad that only punishment of the criminal in the afterlife can make things right? Well, that's not a good reason to believe because it makes as much sense for death in this life to be the end of the road for criminals like that as it does for criminals to be able to commit the crimes in this life in the first place. If there was a true cosmic structure regarding right and wrong, justice and injustice, good and evil, then little girls like Jessica would be kept from spending the last few days of her life as she did. Since we have no rhyme or reason to bad people getting their just desserts in this life and none to good people having over-the-top bad things happen to them, there can be no expectation that things are different when we die.
Belief in God is all about hope, which is a selfish motivation-- although it's natural. Having hope makes us more comfortable. It's not grounded in reality, though. It's a sort of crutch to get through the day. Jessica's family knows now what Jessica discovered inside a trash bag-- there is no hope. It's not real.
I'm reminded of the miner story last January. Here's the thread. Everyone declared how that this was a result of answered prayers and the power of God that the miners had survived. Of course, they didn't survive, except for one. Did this make those posters believe this was evidence that God doesn't answer prayers, that God isn't powerful? I doubt it. It's because they like the hope despite the evidence to the contrary.