I pray for the children.
What if...
What if he helped conceal the body for days/weeks? What if he heard a body was found in FL and thinks/knows it's Heather? If he was an insulin dependent, a dozen extra units of insulin, no food, no glucagon and you're soon seizing, unconscience and dead of 'natural' causes or complications of diabetes. He would know this. I live in fear of this happening accidentally with my own insulin dependent son. My gut says he knows his daughter is guilty, and assisted her somehow or he just knew the truth. Testifying against his spoiled daughter would be too much I think let alone his own guilt of helping her in any way...cover up, alibi, money, bail, attorneys. To me, it's just too coincidental. If that's what happened, TM would know and will know always she did not just take the life of Heather but also her own father's indirectly.
Just my very own narrow minded opinion, which has been off the mark more than once.