the defense department says 28- year-old army sergeant william gross-paniagua died sunday in the kunarhis vehicle was hit by a roadside bomb. friends and family in daly city say they are stunned. >> william was a really nice, sweet, respectful person. he is really going to be missed. there's like not -- 30 minutes don't pass by we didn't start crying. i don't want to start crying again. >> friends say gross-paniagua often would not tell his mother that he was coming home just so he could see her reaction when she opened the door. he was planning to surprise her again in january. >>> if the journey of 1,000 miles requires a first step, 3,000 requires a bigger step. anser hassan has more on a somber mission. good afternoon. >> reporter: good afternoon. this is no joke. 4,000 miles in 39 days. the two firefighters are expected to cross the golden gate bridge at about 2 p.m. on their way to sausalito on the first day of their bike ride across the u.s. final destination, new york city on the 10th anniversary of 9/11. the two santa clara firefighters darrell sales and david lombardo began th