Mark Anthony Conditt was named Wednesday as the serial bomber behind the string of blasts that terrorized Texas for three weeks and left two people dead, as officials warned residents that other explosive devices may still be out there.
The first photo of Conditt, from 2013, emerged Wednesday morning and was authenticated by the Austin American-Statesman. The picture came from the Facebook page of his mom, Danene Conditt, who appeared to be celebrating Mark's high school graduation.
Conditt, who a law enforcement official identified as the Austin bomber, can be seen in surveillance photos obtained by Fox News dropping off two suspicious packages on Sunday from inside a South Austin FedEx Office store on Brodie Lane.
One of the two packages exploded on a conveyor belt at a FedEx sorting facility outside of San Antonio in Schertz on Monday, while the second package was intercepted by authorities at a facility near the Austin airport.
Conditt was home-schooled and went to Austin Community College, according to neighbors.
He and his father, Pat Conditt, purchased a Pflugerville property last year that is now valued at about $69,000, according to property records. Another neighbor who was not named told KVUE that Conditt was from "one of the nicest families you'd want to have," and was "extremely surprised' to find out he was behind the deadly bombings.
“I know this is a cliché, but I just can’t imagine that,” a neighbor told the Austin American-Statesman on the condition of anonymity, and whose children grew up playing with Conditt. Authorities have said Conditt was 24, but public records obtained by the Statesman indicate he was 23.
Texas Gov. Greg Abbott told "FOX & friends" authorities were able to gather information, in addition to the surveillance video showing Conditt in a "disguise" of a blonde wig and gloves to piece together various pieces of the puzzle to give law enforcement the ability to track him down.
"I can tell you is that we're praying for the family, and I can't imagine what they're going through," he said. The neighbor who spoke to the Statesman said Mark Conditt had been living in that house, which he built with his father’s help.
Mayor Victor Gonzales told The Associated Press that police had surveillance on the home overnight Tuesday, though he said he didn't personally know the family. Gonzales told the AP he had concerned neighbors approaching him because of the large police presence in the neighborhood, but he let them know everything would be OK.
The mayor of Pflugerville said he lived only two blocks away from Conditt in a part of the city known as Old Town
"We don't know where this suspect has spent his past 24 hours, and therefore we still need to remain vigilant to make sure that no other devices have been left out in the community," Gonzales told reporters.
Meanwhile, authorities boasted of uncovering a "treasure trove of information" about the dead 24-year-old -- but officials warned other explosives may still be out there, and other collaborators may be on the loose.
Austin Police Chief Brian Manley said communities surrounding Round Rock, where Conditt blew himself up as SWAT officers closed in, should "remain vigilant" as officials work to put together a timeline for where the suspect has been.
Conditt didn't appear to have left much of a trail on social media, but in 2012 posts on what appears to be his personal blog he expressed opinions about a range of topics, including gay marriage.
The Texas governor said authorities are now going to spend the next 24 hours trying to figure out if anyone else was working with Conditt, and if there are any other bombs out there.
A blogger who identified himself as Mark Conditt of Pflugerville, made six entries, all in 2012, in which he wrote that he thinks gay marriage should be illegal and that sex offender registries should be eliminated, according to a copy of the posts obtained by TMZ.
"You have to really hate the guy to make him suffer for the rest of his life, even when his prison time is up," he wrote.
He also described his interests as cycling, tennis and listening to music, according to images of the blog posted by TMZ.
FBI Agent Christopher Combs, head of the agency's San Antonio office, said authorities have a "long day ahead" as they work to go through "exactly what happened."
"We are concerned there may be other packages still out there, we need the public to remain vigilant, especially today as we go through the investigation," Combs said.
Fred Milanowski, agent in charge of the Bureau of Alcohol, Tobacco and Firearms' Houston Field Division, told reporters that investigators believe Conditt built all four of the package bombs that have blown up in Austin, but it's "hard to say" whether he was acting alone.
Austin Mayor Steve Adler thanked law enforcement for their work in bringing down the suspect, but urged residents to continue to report anything that appeared suspicious or out of place.
When asked later if Conditt built bombs prior to the start of the spree in Austin, Milanowski responded: "We know when he bought some of the components. It's hard to say whether he was building along the way."
The suspect's death on Wednesday came a day after a package exploded as it passed along a conveyor belt at a FedEx shipping center in Schertz, northeast of San Antonio and about 60 miles southwest of Austin. One worker reported ringing in her ears and was treated at the scene.
"There's got to be an absolute sense of relief as well as gratitude for this army of law enforcement officials that have done," he told "FOX & friends."
Later in the morning, police sent a bomb squad to a FedEx facility outside the Austin airport to check on a suspicious package. Federal agencies and police later said that package had contained an explosive that was successfully intercepted and that it, too, was tied to the other bombings.
Two men were injured on Sunday after a bomb exploded in an Austin neighborhood that was triggered by a trip wire, which officials said contained a "higher level of sophistication" than agents saw in three package bombs previously left on doorsteps.
"Regarding our contribution to the effort, U.S. Representative Michael McCaul, chairman of the U.S. House Committee on Homeland Security, was quoted this morning as saying, 'I hope his biggest mistake was going through FedEx,' FedEx President and Chief Operating Officer David J. Bronczek said in a statement. "We are grateful that none of our FedEx team members have been seriously injured, and our thoughts and prayers go out to the victims of these senseless attacks, as well as to the entire Austin community."
FedEx said in a statement that it was able to provide law enforcement "with key evidence leading to the identification of the suspect responsible for the bombing" because of the company's "advanced security capabilities and the vigilance of our team members."
The first was a package bomb that exploded at a northeast Austin home on March 2, killing 39-year-old Anthony Stephen House. Two more package bombs then exploded farther south on March 12, killing 17-year-old Draylen Mason, wounding his mother and injuring Esperanza Herrera, 75.