India, July 30 -- A man was arrested after being spotted walking through a Bronx neighborhood carrying what appeared to be a long gun. The incident occurred just hours after a mass shooting at a Manhattan office tower left four people dead, including an NYPD officer.

According to the New York Post, the 42-year-old suspect, known to police as an emotionally disturbed individual, was arrested around 12:30 p.m. Tuesday near 1402 Nelson Ave. in the Highbridge neighborhood. Authorities say the man has over 70 prior arrests, including six involving firearms.

A photo published by the Post shows the man wearing a black T-shirt, black shorts, white sneakers, and a black backpack, holding the weapon in his left hand.

The disturbing scene unfolde...