A Philadelphia man who police say left a gun outside that a A 7-year-old girl picked up and used to fatally shoot herself accident Sunday in Juniata Park was charged Monday with involuntary manslaughter and related offenses.

Alan Nguyen, 24, was arrested Sunday night after the child found a gun he had placed in a dresser at the child’s house, where he had been staying as a guest, and accidentally shot himself in the face Sunday after- noon, said the Deputy Commissioner of Police. Frank Vanore.

Police responded to a call of a shooting at a home on the 3800 block of First Street around 2:27 p.m. When officers arrived, they found the child suffering from a gunshot wound to the face, police said. She had been shot in the right eye, Vanore said

The girl, who police have not identified, was taken to St. Christopher’s Hospital for Children and was pronounced dead at 2:39 p.m., police said.

Investigators learned Nguyen was a friend of the child’s family and was staying at their home, Vanore said. Nguyen put his 9mm in a dresser drawer, and the child was later playing in that room, where he found the gun and accidentally shot himself, he said.

Nguyen legally owned the gun, Vanore said.

The experts said unintentional shootings of children can be prevented if gun owners keep their guns safe and secure in their homes. Research has shown that children as young as 2 are strong enough to pull the trigger and that most know where a parent stores their guns.