The suspected Austin bomber left behind a 25-minute “confession” recording on his phone, police said. Brian Manley, the acting chief of the Austin Police Department, said the suspected bomber, Mark Anthony Conditt, described in detail how he built the bombs. “It is the outcry of a very challenged young man talking about the challenges in his life,” Manley said. Police said Conditt blew himself up on Wednesday morning, 19 days after he allegedly began sending bombs in packages across the city. Two people have been killed and four others were injured in the five bombings.