Getting Stoned How many police officers have been killed by rocks?

By Brian PalmerPosted Wednesday, June 9, 2010, at 5:46 PM ET

Ciudad JuarezA U.S. Border Patrol agent shot and killed a teenager who was hurling rocks at him near El Paso, Texas, on Monday. A representative from the Border Patrol agents' union noted that rock throwing can be deadly, and police are permitted to fire in response. How many officers have been killed by rocks?

Three in the United States, but none in almost seven decades. The National Law Enforcement Officers Memorial Fund has gathered records on all police officers killed in the line of duty since the first U.S. patrolman went down in 1792.

According to their database, rocks were responsible for three of 18,983 fatalities.

http://www.slate.com/id/2256457/