An armed man attacked the patients and the medical staff of a psychiatric hospital turtle Creek valley in the town of Hamsted, County of Allegheny, Pennsylvania. On Friday, November 11, reported CBS.
The incident occurred in the afternoon. Unknown (according to some, under the guise of a patient) made his way to the fifth floor, where he took several people hostage. Seven of them he inflicted stab wounds.
At the emergency, the police were called. Police tried to convince the assailant to drop the weapon and surrender, Recalling that in his hands are seven wounded who need medical assistance. The offender threw away the knife, but to lower the gun refused, then the police opened fire.
The assailant was mortally wounded, he died on the way to the hospital.
As stated, the crime was committed by 38-year-old Dustin Johnson. His motives are not known, several media outlets reported that he could be a patient of the clinic, and the attack is revenge for the bad, in his view, treatment.