I don't think that HKS could off himself.
Hmmmm, I don't really know. He seems pretty strung out. The baby's father is next in line for the dough if the baby ends up dead. That is a scary thought given we have no idea what nut job really fathered the kid.
But what would be really crazy is if Daniel was the father as some have theorized. That would mean that Virgie and Anna's long lost dad would get the the old man's millions....I think.