BY WCVB-TV (Massachusetts)

LOWELL, Mass. — More than 120 Lowell senior citizens were waking up safe Wednesday morning thanks to one person.

They were forced out of their Lowell apartment complex Tuesday because of unsafe levels of carbon monoxide in the building, and if it weren't for a fellow resident, the situation could have turned deadly.

NewsCenter 5's Shiba Russell reported that one emergency worker said many residents could have died in their sleep. But the gas was detected early enough and the man who got the warning wasted no time calling for help.

Full Story: http://www.thebostonchannel.com/news/6832921/detail.html