Jillian, I think you had said that there was a significant amount of blood under the seat.
From what I understand from reading, purging can happen anytime after death. In searching there were some morticians saying they have moved a body and it purge....even after embalming the body may try to purge the ef so they have to keep an eye on the body.
With no outwardly apparent signs of trauma, moo isn't that maybe he came home from taking kids to school, saw her on phone playing game, got jealous/mad and an argument broke out she fell and injured head....
No visible trauma. GR panics and tries to dispose of body but before he gets to where she has a bloody nose / purges.
It would be great if it were a random stranger because the alternative is the kiddos losing both their parents.