Authorities in Prince George's and Anne Arundel counties have foiled what they believe would have been a mass shooting by a man who was about to be fired from his job, police sources tell ABC 7 News.

Law enforcement sources tell ABC 7's Brad Bell that the suspect, Neil Trescott, was arrested in Crofton on Thursday night. According to officials, the man was facing termination from his job at Pitney Bowes, the document, mailing and shipping company.

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