. >> reporter: a moment ray ann groover, evelyn piazza, cat lien wyant, and carol king will never experienceeir boys again. >> what's the one thing you miss the most about tim? >> just -- everything. i miss everything. >> reporter: they tell us they are bonded by fraternity hazing and heartbreak. >> you shouldn't go off to college and not come home 29 days later. >> reporter: these four fearless moms are determined to make a difference. >> we're uniquely qualified. we're saying, don't haze, because this is what happens. this is the damage that it does. >> reporter: ray ann's son, max, a freshman at louisiana state university when he lost his life at the age of 18. campus police say max died after an hours'-long hazing ritual called bible study. pledges reciting the greek alphabet. if you make a mistake, you're forced to drink alcohol. max's cause of death, acute alcohol intoxication and asphy asphyxiation. his blood alcohol level w was .495%, more than six times the legal limit. >> we thought he found a group of guys that were a lot like him. and they killed him. >> reporter: evelyn's 19-yea