Prosecutors say the mother of Michigan school shooting suspect Ethan Crumbley texted her son “don’t do it” when an active shooter was reported in Oakland County earlier this week. In a Friday news conference, Oakland County Prosecutor Karen McDonald made the revelation that Jennifer Crumbley texted her 15-year-old son at 1:22 p.m. About 15 minutes later, she said, the boy’s father, James Crumbley, called 911 to say his gun went missing. The father told the 911 operator that the shooter may have been his son, according to McDonald. James and Jennifer Crumbley were charged on Friday with four counts of involuntary manslaughter in connection to the deaths of Hana St. Juliana, 14; Madisyn Baldwin, 17; Tate Myre, 16; and Justin Shilling, 17, at Oxford High School on Tuesday. Ethan Crumbley was already being held without bail on murder and terrorism charges “I want to be really clear that these charges are meant to …