Mother, 22, leaves her concealed weapon on couch. Son, 3, finds gun and shoots himself.

22-year-old Lisa Evans, of Clarksville, Tennessee, took off her concealed weapon, a Kel Tec .380 handgun, and put the gun on a couch. She thought her 3-year-old son was eating at a table in a different area of the apartment so she sat down at the computer, with her back to the couch.
She heard a gunshot and turned to see her son crying and holding his abdomen. The child was taken by Lifeflight helicopter to the medical center in Nashville for surgery. He is alert and talking but in critical condition.
Evans has a concealed weapons permit.
Police are still investigating the incident and charges may be filed against the mother.