She was found of first-degree murder, attempted murder, and tampering with evidence. Gregg snuck up on her mother, who found out about her ‘secret life,’ before shooting and killing her. The mother, Ashley Smylie, could be heard screaming as the first shot rang out. The 15-year-old then lured her stepfather back to the home by texting him from her mom’s phone. When the stepfather, Heath Smylie, returned home, Gregg shot him in the shoulder before he overpowered her.
Ashley Smylie had allegedly found out that her daughter was using drugs. Psychiatrist Dr. Andrew Clark claimed Gregg was having a “mental health crisis” from her medications. Clark along with Heath Smylie say Gregg did not remember shooting her mother. Gregg was seen giggling in court one day earlier.