One family is on lockdown in the wake of the Austin bombings. Mike Murphy and his family are among residents ordered to stay in their homes as authorities try to make sure there are no more tripwire bombs in their neighborhood. Sunday's bombing triggered a police curfew in the affluent Austin neighborhood. Authorities on Monday spelled out the new fears the tripwire bomb poses. “With this tripwire, this changes things,” Christopher Combs, of the FBI’s San Antonio office, said Monday.