(WFXR) — In 2007, a former Christiansburg resident, Bob Bergeson, moved to Brooklyn, New York.

He says after the mass shooting at the 36th Street Subway Station on Tuesday, April 12 — which left 29 people injured, including 10 who were shot — he received multiple text messages asking if he was okay.

“This was absolutely a very shocking circumstance,” said Bergeson.

Occasionally, Bergeson walks wherever he needs to go in an effort to fulfill his goal of walking 20,000 steps a day. With the choice of different routes, he passes by the 36th Street Station, describing the area as a typical Brooklyn area.

“As you get up closer to 36th Street, where the incident occurred, that’s a much more commercial, so it’s busy. It’s very busy.”

He adds that knowing how packed that specific subway station can get during rush hour, there could have been a much higher count of injuries.

“The guy dropped those smoke bombs, and oh my goodness, I couldn’t even imagine. Thank God the gun jammed,” said Bergeson.

He says the incident boils down to one thing — a need to pay closer attention to mental illness.

According to Bergeson, this incident connects to the economic insecurities people are facing, racial tension amongst communities, bail reform issues, and more.

“We need to reset some of our priorities, right, on where we’re spending our money and where we’re putting our funding into helping our society be better and be more functional,” said Bergeson.

A former police officer and retired criminal justice professor at Radford University, Dr. Tod Burke, says that it is important to realize how many departments and agencies came together to investigate this shooting.

He adds that citizen cooperation had a lot to do with the capture of Frank James, the suspected Brooklyn subway shooter.

“Sometimes, it just comes down to good, old-fashioned police work where you have the officer on the beat, asking questions, interviewing witnesses,” said Dr. Burke.

One thing Dr. Burke also brought up was that law enforcement agencies had a short window of time to capture James before he could escape from New York City.

“People can get around very quickly and get lost very quickly, so the longer the time period goes on, the greater the geographical boundary expands, and that includes not just foot transportation, but whether it be subway, auto, plane, train,” said Dr. Burke.

He reminds community members of a common goal — if you see something, say something.

“When you have things, such as a mass shooting, you always hear, ‘oh, the person must have just snapped.’ Very rarely does that happen,” explained Dr. Burke. “What normally goes on is there’s some planning involved and also some communication involved between the suspect or suspects and friends and family.”

The last point Dr. Burke makes is that the allegations James made on social media lend to his issues with mental illness — a true warning sign.

The former cop says recognizing bizarre, out-of-the-ordinary behavior can help to deescalate situations like the Brooklyn mass shooting.