Quick bullet to the back of the head after a single appeal to verify all t's were crossed and i's dotted.

Father should be given the option to perform execution, or ....

.... hang them upside-down and let their intestines slowly seep into their throats. This does take awhile and the
individual normally passes out and dehydrates first, but the victim's family could keep the animal hydrated intravenously during the process and aware by elevating the object's head periodically to ensure blood flow to the brain ....

Seriously,

Tom