Belak's death pushes NHL to investigate off-ice tragedies - The Globe and Mail
After the Derek Boogaard Tragedy: Why the NHL Should Stop the Fights
Derek Boogaard death: Family of NHL brawler sues NHL over his death
Report: Arrests made in death of enforcer Derek Boogaard - Sports Illustrated
Fall of the Boogeyman: Derek Boogaard's final days
Rangers forward Boogaard dead at 28
Derek Boogaard died due to toxic mixture of alcohol, oxycodone - NBC Sports
Punched out: The life and death of an NHL enforcer, Sports
Derek Boogaard: Blood on the Ice - The New York Times
Family, friends, NHL honor Boogaard - Newsday
New York Rangers enforcer found dead in home
Derek Boogaard: Did NHL doctors fail ? – Twin Cities