The St. Louis Post-Dispatch reports that Jermon Perry was shot in the head Saturday afternoon.
Family spokeswoman Erica Jones says relatives believe Jermon's 5-year-old brother found the gun in a dresser drawer in his parent's bedroom while searching for candy and carried it back to his brother's bedroom.
Jones says Jermon was playing a video game when he was shot and that the 5-year-old probably didn't know the difference between a toy gun and a real one.
The 5-year-old and another brother remain at home with their family. Jones says they don't yet understand that Jermon died and keep asking when he will come home from the hospital.
Information from: St. Louis Post-Dispatch, http://www.stltoday.com