Shooter's diary paints a disturbing picture

Chattanooga Deputy Police Chief David Roddy, right, hugs Sgt. Denny Jones before an interfaith vigil at Olivet Baptist Church held in remembrance of victims of the July, 16 shootings on Friday, July 17, 2015, in Chattanooga, Tenn. The vigil was held one day after gunman Mohammad Youssef Abdulazeez shot and killed four U.S. Marines and wounded two others and a Chattanooga police officer at the Naval Operational Support Center on Amnicola Highway shortly after firing into the Armed Forces Career Center on Lee Highway.

A diary belonging to Mohammad Abdulazeez speaks of martyrdom and suicidal thoughts, according to a credible report.

The diary, as reported by ABC news, documents the Chattanooga gunman's suicidal spiral, driven by drugs, money problems and a struggle with being a devout Muslim.

ABC reported that he had trouble adjusting to his 12-hour overnight shift, and took sleeping pills to compensate. He was also considering filing for bankruptcy, and was thousands of dollars in debt, ABC reported.

Though a family representative told ABC News on Sunday that there were no outward signs of radicalization, the 24-year-old was susceptible to "bad influences," and was affected by watching news accounts of children being killed in Syria.