I'd go after someone who did that to one of my sister's , nieces , whoever
I'd hunt their ass down no matter how long it took
I'd find them & kidnap their ass somehow ( keep Em' drugged ) till I get them to the location I want to go
When they awake , they'd find themselves alone in a room with movable walls ( no windows ) with just a chair , a lightbulb hanging from ceiling & a loaded gun
over a speaker system I'd introduce myself & tell them that the moment I push a button the walls will start closing in very slowly inch by inch hourly
you can be crushed to death or shoot yourself
Since the walls are moving slowly it'd give them plenty of time to think about their fate