Mark Anthony Conditt, 23, allegedly detonated a bomb in his vehicle as SWAT officers closed in, approaching the auto in a ditch off Interstate 35 near Old Settlers Boulevard. Authorities followed the vehicle, which ran into a ditch on the side of the road, he said.
The suspect detonated a device in his vehicle and later died, Austin police chief Brian Manley told an early morning news conference after the dramatic end to the massive manhunt involving hundreds of federal agents and local police. The blast from the detonation "knocked one officer back", slightly injuring him, said Chief Manley.
A law enforcement official told the AP the dead Austin bombing suspect's name was Mark Anthony Conditt.
"The suspect is deceased", the police chief said.
But online postings indicate he was home schooled.
He attended Austin Community College after being homeschooled, but dropped out in 2012 without graduating. In posts from 2012, he argued against gay marriage, in favor of the death penalty and against releasing terrorists from Guantanamo Bay.
The mayor of Pflugerville, an Austin suburb not far from the site of the first of four bombings, said the suspect lived in his city, just two blocks from his house.
Jay Schulze, a 42-year-old network engineer, said he lived a few houses away from Conditt, who with his friends would relax late at night.
Delton Southern, who said Conditt frequented his local Delton's barbershop for years, described him as "a quiet guy".
Jeff Reeb said he has lived next to the parents of Conditt for about 17 years and that they are good neighbours.
Mr Reeb said Conditt was in the process of gutting the house and remodelling it, which meant a lot of hammers and nails around frequently.
Police used surveillance footage to determine the suspect's vehicle.
Authorities believe the same person or persons were connected to the two packages that surfaced Tuesday and were also responsible for the four other explosions that began on March 2nd that killed two people and injured six.
Fifth bombing: At least one person is hurt after a bomb went off at a FedEx plant in Schertz, Texas, on Tuesday, March 20, 2018.
Citing a high-ranking law enforcement official, the Austin American-Statesman reported that authorities had identified the suspect based largely on information, including security video, gleaned after he sent an explosive device from an Austin-area FedEx store. Even if the bomber acted alone, police warned residents Wednesday to remain vigilant in case he left behind more packages.
"This is the culmination of three very long weeks for our community", Manley said.
Since the bombings started on March 2, investigators frantically searched for clues, calling the attacks the work of a " serial bomber" who increasingly changed tactics.
A federal agent says it's "hard to say" whether the dead suspect in this month's Austin bombings was acting alone.
Asked if the suspect built bombs before the Austin attacks, Mr Milanowski said: "We know when he bought some of the components. It's hard to say whether he was building along the way".
Austin package bomber Mark Anthony Conditt's family said they "had no idea of the darkness that Mark must have been in".
Early Wednesday morning, the Austin Police Department announced on Twitter that it was responding to an officer-involved shooting near Interstate 35 in Round Rock.
Figueroa said they saw a silver or gray Jeep Cherokee that was pinned between black and white vehicles and "looked like it had been rammed off the road".
President Donald Trump congratulated law enforcement Wednesday after authorities appeared to locate a man suspected of a series of deadly bombings in Austin, Texas. One of the two packages exploded on a conveyor belt at a FedEx sorting facility outside San Antonio, in Schertz. However, authorities say she was treated at the scene and released. FedEx said the person who sent the package that exploded Tuesday also shipped a second one that was turned over to law enforcement officials. The bombings killed two people and left the Texas capital terrorized with fear for 19 days.