Six people are alive today thanks to the swift actions of one of the roommates from the group who saved the others during a Gwinnett County house fire.
Forty-six-year-old Christopher Hammond said he got off work around 3:15 a.m., made it to the gym, then returned home to the 700 block of Camp Perrin Road NE in Lawrenceville around 4:15 a.m., about an hour before investigators said firefighters were called about a house fire.
Investigators said they believe the fire was intentionally set…