On Average, 1 Officer Has Been Killed Every Week This Year

 (CNN) — In the first 17 weeks of this year, 21 law enforcement officers across the US have been shot and killed in the line of duty, including two police officers this week in Texas and Maine. That averages out to more than one death a week.
The parameters CNN followed in this count are:The officer was fatally shot this year
The officer was on duty at the time of the shooting“The tragic deaths … (are) a stark reminder of the dangers our law enforcement professionals face