>> obviously you're going to get arrested if you do it. you stand a very good chance of being arrested but it's always the phenomenonal we have to be concerned about. >> marvel weaver says he was playing knockout when he was shot twice by the man he was trying to punch. in lansing michigan. now, weaver is in jail. >> it was just a lesson learned. somebody just throws out and people go along with it and one thing leads to another and it goes downhill. >> in september in new jersey, two young teenagers were charged with killing ralph santiago after police found the 46-year-old with his neck snapped and head stuck between two fenceposts. although there are only a handful of these assaults across the country, lawmakers are looking for harsher penalties an as law enforcement agencies step up patrols for those playing a dangerous and disturbing game with potentially deadly consequences. katie turr, nbc news new york.