Two friends, ages 22 and 23, of Mesa, Arizona were watching a gun training video on how to properly field strip (take apart, clean, lubricate, reassemble)a Glock handgun. The 23-year-old decided to try and remove the slide, but didn't realize there was a round in the chamber. When he pulled the trigger to disengage the slide the firearm discharged, shooting his friend in the back of the leg.
The man was taken to the hospital with non-life threatening injuries. Police consider the shooting an accident and don't plan on pressing any charges.