Sheriff: Investigators found evidence that Maryland warehouse shooting suspect was suffering from mental illness

Sheriff: Investigators found evidence that Maryland warehouse shooting suspect was suffering from mental illness
Authorities respond to a shooting in Harford County, Md., Thursday, Sept. 20, 2018. Authorities say multiple people have been shot in northeast Maryland in what the FBI is describing as an "active shooter situation." (Jerry Jackson /The Baltimore Sun via AP)

ABERDEEN, Md. (AP) — Sheriff: Investigators found evidence that Maryland warehouse shooting suspect was suffering from mental illness.