The lonely lone shooter: The Pittsburgh synagogue suspect's apparently isolated life

PHOTO: Robert Bowers is pictured in a booking photo released by the Butler County Prison on Oct. 30, 2018.PlayButler Co. Prison
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The man accused of massacring 11 Jews in an anti-Semitic rampage at a Pittsburgh synagogue this weekend is still relatively unknown, but appears to be the textbook fit of what law enforcement experts consider the lone mass shooter profile.

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Based on interviews with law enforcement officials and the few who say they knew suspect Robert Bowers, the 46-year-old man appeared to live a life of stark isolation and seeming loneliness.

Bowers lived alone in the Pittsburgh area, and in the 18 months at his most recent home, neighbors said he was always by himself and never opened the blinds.

PHOTO: McAnulty Acres, where Robert Bowers had an apartment in Pittsburgh, Oct. 28, 2018. Michael Henninger/The New York Times/Redux
McAnulty Acres, where Robert Bowers had an apartment in Pittsburgh, Oct. 28, 2018.

Bowers -- who was taken into custody Saturday and is now being held in the Butler County Prison -- never married and has no children. All neighbors, former neighbors or co-workers who spoke to ABC News described Bowers the same way: “quiet,” “kept to himself” and that “he looked very normal.”

A driver from B. Keppel Trucking, where Bowers used to work, didn't recall him, but described it as the kind of job where you didn't need to interact with your coworkers.

PHOTO: A Department of Motor Vehicles ID picture of Robert Bowers, the suspect of the attack at the Tree of Life synagogue in Pittsburgh.AFP/Getty Images
A Department of Motor Vehicles ID picture of Robert Bowers, the suspect of the attack at the Tree of Life synagogue in Pittsburgh.

Bowers fits every characteristic of the lone mass shooter, according to ABC News contributor and former FBI agent Brad Garrett.

"Typically these mass shooters tend to be ghosts in their own communities," Garrett said. "Mass shooters tend to work alone, they tend to be paranoid, they tend to be somewhat delusional. They almost exclusively are completely isolated or mostly isolated from the rest of the world because they feel like they're on the outside of the world looking in."

"They tend to spend a lot of time online with like-minded individuals or groups that have a similar philosophy that they do," Garrett said.

Mass shooters also tend to feel "completely and utterly powerless," Garrett said, and think carrying out violence will give them power -- at least for those few minutes.

PHOTO: Law enforcement officers secure the scene where multiple people were shot, Oct. 27, 2018, at the Tree of Life Congregation in Pittsburghs Squirrel Hill neighborhood.Alexandra Wimley/Pittsburgh Post-Gazette via AP
Law enforcement officers secure the scene where multiple people were shot, Oct. 27, 2018, at the Tree of Life Congregation in Pittsburgh's Squirrel Hill neighborhood.

Minutes before carrying out the carnage at the Tree of Life Synagogue Saturday, Bowers is believed to have posted his intent to commit the massacre on the social media platform Gab, which is popular with white supremacists and the alt-right, investigators said.

Prosecutors say Bowers -- carrying an assault-style rifle and three handguns -- "made statements regarding genocide and his desire to kill Jewish people" during the 20-minute attack.

PHOTO: First responders run with a person on a stretcher at the scene where multiple people were shot, Oct. 27, 2018, at the Tree of Life Congregation in Pittsburghs Squirrel Hill neighborhood.Alexandra Wimley/Pittsburgh Post-Gazette via AP
First responders run with a person on a stretcher at the scene where multiple people were shot, Oct. 27, 2018, at the Tree of Life Congregation in Pittsburgh's Squirrel Hill neighborhood.

As Bowers allegedly exchanged fire with officers, some of whom were injured, the gunman shouted to SWAT officers that he wanted "all Jews to die," authorities said.

Bowers was shot and hospitalized.

Authorities said he likely acted alone.

PHOTO: Police tape is viewed around the area, Oct. 28, 2018, outside the Tree of Life Synagogue after a fatal shooting in Pittsburgh, Oct. 27, 2018. Brendan Smialowski/AFP/Getty Images
Police tape is viewed around the area, Oct. 28, 2018, outside the Tree of Life Synagogue after a fatal shooting in Pittsburgh, Oct. 27, 2018.

Bowers has no criminal history besides some minor infractions with police in Dormont, Pennsylvania, in the 1990s -- and it appears he bought his guns legally, authorities said.

He was not on the radar of the FBI, authorities added.

“The most terrifying thing is how normal he seemed," said neighbor Chris Hall, who lives in the same Pittsburgh apartment building as Bowers.

PHOTO: Rabbi Eli Wilansky lights a candle after a mass shooting at Tree of Life Synagogue in Pittsburgh, Oct. 27, 2018. Steph Chambers/Pittsburgh Post-Gazette via AP
Rabbi Eli Wilansky lights a candle after a mass shooting at Tree of Life Synagogue in Pittsburgh, Oct. 27, 2018.

Bowers was indicted on 44 counts by a federal grand jury in Pittsburgh, including 11 counts of obstruction of free exercise of religious beliefs resulting in death and 11 counts of use and discharge of a firearm to commit murder during and in relation to a crime of violence.

PHOTO: This courtroom sketch depicts Robert Gregory Bowers, who was wounded in a gun battle with police as he appeared in a wheelchair at federal court, Oct. 29, 2018, in Pittsburgh.Dave Klug/AP
This courtroom sketch depicts Robert Gregory Bowers, who was wounded in a gun battle with police as he appeared in a wheelchair at federal court, Oct. 29, 2018, in Pittsburgh.

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