Was talking to my friend the other day

Who is a paramedic and he was talking about how he had to go to a scene once where a child was raped by an adult man and he ended up having to care for the rapist who got beat up by the child's dad, and the guy didn't seem to care about what he had done ect, and this upset my friend so when he put a IV catheter in the guy he used the biggest gauge needle in the ambulance.   
Cruel or not? Assuming most of you are probably gonna flip out after reading responses to that persons decaf if you're mean thread lol