January 26, 2014 3:44 am FBI: Boston suspects considered armed, extremely dangerous Authorities released photos, video of 2 suspects in Boston Marathon bombings 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.