But it would sure be difficult to detect at this point, since watching your mom shoot your dad dead, then being dragged off somewhere by her in a big hurry, and then having police suddenly show up and grab her and cart ehr off and toss you and your young siblings in a strange foster home, is likely to cause some behavioral changes too.
If any behavioral changes were present from abuse,they could have been detected or noticed before the killing.
"since watching your mom shoot your dad dead,"
The police said that the kids didn't know that their dad had been shot. That's the police in Alabama saying this, after talking to the children. They didn't see anything.