Authorities on Wednesday identified the man they say is responsible for the Austin package bombings as Mark Anthony Conditt, a 23-year-old from Pflugerville, Texas.
They said Conditt died when he detonated an explosive during a confrontation with police. Texas Gov. Greg Abbott told KVUE Conditt appeared to have no military or criminal background and that investigators were still trying to determine his motive.
Before his death, federal criminal complaint and an arrest warrant were filed against Conditt on Tuesday night in connection with the bombings, the Department of Justice said in a statement.
He was charged with one count of unlawful possession and transfer of a destructive device. The complaint affidavit remains sealed due to the ongoing investigation, authorities said.
The charge was filed before he detonated the bomb early Wednesday as officers were attempting to apprehend him in Round Rock. He died shortly after.
Austin police said Conditt had two roommates, who had been detained for questioning. One of them was released while the other was still being questioned. Their identities were not made public.