[GOPyouth]

I don't believe for a minute this death came during the heat of passion. This has pre-med written all over it. He never went fishing up there. He studied the currents of where she was dumped. She was cemented down and put under water. The baby was also found a mile away, which makes me wonder if the baby was born before she died, or whether he was cut out before he put her under water.
Even if they can't determine pre-med, they won't have any trouble establishing viability of the baby at 8 months. That will be two homicides which will make him eligible for the death penalty here in California.

[Trust but Verify]

It is likely the babys' body was expelled from his mothers' body as a result of the process of decomposition.