Investigators said they 'll examine a blood sample to determine whether Kirk was under the influence of any substances at the time of the shooting . Police affidavit : Richard Kirk bought marijuana candy hours before his wife was killed . Denver Police Chief Robert White says he 's conducting an internal review into the response . For nearly 13 hours , Richard Kirk spoke to a 911 operator -- until a gunshot rang out . After the gunshot , an affidavit reads , ` ` was stopped , '' but she was ` ` never heard from again ''
Police affidavit : Richard Kirk bought marijuana candy hours before his wife was killed . Denver Police Chief Robert White says he 's conducting an internal review into the response . For nearly 13 hours , Richard Kirk spoke to a 911 operator -- until a gunshot rang out . After the gunshot , an affidavit reads , ` ` was stopped , '' but she was ` ` never heard from again ''