Prosecutors on Friday charged the parents of the 15-year-old male accused of opening fire at a Michigan high school this week, leaving four dead. James Crumbley and Jennifer Crumbley are each facing four counts of homicide manslaughter involuntary. They face up to 60 years in prison if convicted on all counts. Authorities say the couple’s son, Ethan, used a firearm on Nov. 30 at Oxford High School that his father has bought just days prior. Ethan was with his father when he bought the gun from a store in Oxford, Oakland County Prosecutor Karen McDonald, a Democrat, told a press conference announcing the charges. Ethan also posted on social media images of himself posing with the gun. An investigation revealed that the gun was stored in an unlocked drawer in the parents’ bedroom. On the morning of the shooting, a teacher found a note on Ethan’s desk that alarmed her. It …