File Photo – Buffalo Grove Police Department | Photo: Woo-Sung Shim / Lake and McHenry County Scanner The medical examiner has released the causes of death for an elderly couple and their son, who all died after officers responding to a well-being check found them in their Buffalo Grove home last month. The Buffalo Grove Police Department responded around 7:45 a.m. on June 16 to the 200 block of Timber Hill Road in Buffalo Grove for a call of a …