Investigators scour Texas bomber's home, searching for a motive

Federal investigators on Thursday combed through the home of the 23-year-old they say was behind this month's deadly Texas bombing spree, seeking clues about what motivated his attacks the day after he killed himself in a confrontation with police.Mark Conditt, an unemployed man from the Austin suburb of Pflugerville, confessed to the three-week string of bombings in a 25-minute video found on his cellphone, police said.Conditt blew himself up with one of his own bombs on Wednesday as police clo