Port St Lucie police said a thief used a new app called, "Let Go" to meet someone and steal his BB gun then turn it into a real gun.
An 18-year-old told police he posted on the app that he was selling a BB gun and then the two agreed to meet on Crosspoint Drive in Port St. Lucie.
The seller's grandmother drove him to meet the buyer. Police say the buyer, a 16-year-old, asked to show the BB gun to his brother.
The older teen said "No," so the buyer then grabbed the gun from the trunk of the car and ran off.
Police said they were able to track down the accused thief and locate the BB gun. Investigators said it had been converted to fire a live bullet found inside the gun, which they say is incredibly dangerous.
"When he entered them (bullets) into the cylinder of the revolver, he also placed a nail inside the old casing, and to center that nail he also placed some tape around it so it held it perfectly in the center of that old casing," said Port St. Lucie Police Detective Gerard Harrington. "When he pulls the trigger, the CO2 would go through that old casing where the primer used to be and it would push that nail forward."
The teen was arrested and taken to a juvenile detention center.
