On 8-17-10 at approximately 0900 Officers X, X, X, X, X, X, and Grollnek were at the McKinney Police Departments outdoor range conducting a shotgun training course. Corporal X announced that there was an incident at the PD that was unfolding with a vehicle on fire and shots being fired. Cpl X and Cpl Grollnek… Continue reading Active Shooter Incident at McKinney Police Department Chris Grollnek SWAT Action Report