A tragic story that was caught on film. 

 

From WCVB:

A Brentwood, New Hampshire, police officer was shot and killed before a massive house fire and explosion, officials said Monday night.

[Alleged shooter Michael] Nolan is believed to have set the duplex on fire, and about 5:50 p.m., a massive explosion rocked the neighborhood and tore part of the roof off the building. The house was quickly engulfed in flames and destroyed.