April 29, 2014 1:28 pm Natural gas leak cause of Boston home explosion Residents of the Boston home say they felt their house shake as they tried to escape US & World Videos 0:21 Helicopter crashes in woods near Danbury home, pilot injured 1:13 Firefighters respond to 5-alarm fire in Chelsea 2:47 Brian Higgins, witness in Karen Read trial, explains why he destroyed his cell phone 0:39 Warwick officer shoots dog after attack 2:07 Same-sex marriage: Cambridge marks 20 years since the first in Mass.