As investigators continue to delve into what may have motivated the suspect in the deadly National Guardsmen shooting last week, a portrait of a life of increasing financial stress and a potential mental health crisis has emerged, sources familiar told ABC News. Additionally, multiple sources said that investigators are looking into the impact of the recent death of an Afghan commander, who allegedly worked with the suspect, 29-year-old Rahmanullah Lakanwal. The death of the commander -- whom Lakanwal is said to have revered -- had deeply saddened the suspect, sources said. This may have compounded on Lakanwal’s financial burdens, including not being employed, having an expired work permit and allegedly struggling to pay rent and feed his children, sources said. Officials said the suspect

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