Does this guy deserve a beatdown?

[mattak]

Long story short. My 14 year old daughter and 3 of her friends got caught smoking pot at school. It turns out that they got the pot from a 21 year old cousin of one of the girls. As well he gave the girls a pill bottle with 8 pills of what he says is extasy. I know the guys name and where he works. Wouldn't be to hard to track him down. I feel like kicking his ass but I am also aware that he may retaliate against my daughter some how. Any ideas?