Never use the weapons of the enemy. . .and breaking the law(in this case doxxing which uses hacking as a tool to get the info) is their weapon. . .however if you just happen to see video or something online and just happen to know the e-mail of the parents, employers, etc then just send one copy of the evidence without any bluster or fanfare. Don't make any demands, don't rub it in their faces, or anything like that. Just write something, "Do you know what your employee is doing while not at work?" and leave it at.