Engaged Michigan Man Killed Outside House Party

While 22-year-old Ryan Pollok waited to leave his good friend's birthday party, he and his buddies stood outside, joking around without a care in the world. No one had any idea that danger was lurking just around the corner. Without cause or provocation, cops say two blood-thirsty gangbangers showed up and shot into the crowd -- leaving Ryan dead, and another man injured. Now investigators need your tips to locate the two brothers who they say are responsible for shattering so many innocent lives that fateful night.