morris ridges jr. this is his 2-year-old son jamison bridges. >> i'm honored to have the opportunity to tell you about brother, cyrus. and the amazing life he shined. >> kevin sanders was a husband, a father, a son, a grandson, a brother, an uncle and a cousin, a nephew, a co-worker and a neighbor, and a friend. >> federal and state investigators have not yet determined what started the fire which ignited the blast. records show the fertilizer plant had 540,000 pounds of ammonium nitrate, 100 times more ammonium nitrate than terrorist bomber timothy mcveigh used 18 years ago to blow up a federal building in oklahoma city. the blast was powerful enough to register as an earthquake and blew a crater 93 feet wide and 10 feet deep. it leveled the fertilizer plant and homes within a five-block radius. this is what that blast did to a nearby apartment complex. and to a nursing home. and to a children's playground. and to the local school. in january, bp pleaded guilty to 11 counts of manslaughter for the deaths of 11 men who were killed in the explosion on the deepwater horizon rig in the gulf of mexico in