After the first bombing, the Austin Police Department (APD) announced it was investigating the death of House as a possible homicide. Chief Brian Manley said "we have no reason to believe this is anything beyond an isolated incident that took place at this residence, and no reason to believe this is in any way linked to a terrorist act. But we are not making any assumptions. We are conducting a thorough investigation to rule that out. " On the following Monday, March 5, Austin police identified the first victim as Anthony Stephan House, and said the death was being treated as suspicious. The first police theory was that House was an unintended victim who was killed by a bomb meant for someone else, perhaps a suspected drug dealer who lived in the neighborhood. Assistant Chief Joseph Chacon said police "can't rule out that Mr. House didn't construct this himself and accidentally detonate it, in which case it would be an accidental death. " Later, police began to investigate House's finances.