Today's bombings are similar to a March 2 incident that killed Anthony Stephan House after he opened an unmarked package at his house on Haverford Drive.
The chief said all of the victims have been black and that investigators are considering whether race could have factored into the attacks.
Special Agent Michelle Lee, a San Antonio-based spokesman for the FBI, said the agency responded to both events and was assisting Austin police, who were leading the local investigation.
McManus said the community shouldn't be anxious by the explosions but rather "cautious" due to Austin being just 80 miles north of San Antonio. Mayor Steve Adler, City Manager Spencer Cronk, and members of the Federal Bureau of Investigation joined Manley for today's press conference, though only Manley spoke. Courtesy of the Associated Press and YouTube.
The doorway of a home that was hit with a fatal parcel bomb on March 2, 2018 is seen boarded-up in Austin, Texas, U.S., March 12, 2018.
Austin resident Trey Mathis said he expected a package to be delivered Monday but was still nervous when it showed up.
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Initially, police said it was being treated as a "suspicious death", and that police didn't have "any indication that this is anything part of a larger scheme". The second bomb severely injured an elderly woman.
Later Monday a second explosion was reported in the 6700 block of Galindo Street in East Austin. He died from his injuries shortly after being transported to the hospital, according to KEYE. The package exploded when she picked it up, Chief Manley said.
"We are praying and thinking of her through her recovery in this incident", Manley said. He said his office has not ruled out terrorism. "We are looking at anything that might tie these two together, but again, there are similarities that we can not rule out that these two incidents are in fact related". Courtesy of kxan and YouTube.
In describing the Monday morning blast that killed the teenager, the chief said: "What we understand at this point is that early this morning is that one of the residents went out front and there was a package on the front doorstep". Manley said the package exploded after they opened it. The packages were not delivered by the postal service or delivery services like UPS or FedEx, he said.
And while police are checking with other delivery services, including Amazon, Manley said it appeared that the packages were not delivered through traditional services. In a second attack on Monday, a 75-year old Hispanic woman sustained life-threatening injuries.
There was "significant damage" to the porch involved in the March 2 blast as well as at least one of the blasts this morning, Manley said.