MEXICO – State police detectives have yet to turn over their investigative report into last week’s accidental shooting that seriously injured a 9-year-old Mexico boy.

The report is expected to be sent to Oxford County Assistant District Attorney Joseph O’Connor in Paris. O’Connor said Tuesday afternoon by phone that he had yet to receive the report.

Tyler Richard, the son of Katherine Caponi of Dixfield and Jeff Richard of Rumford Center, was listed in serious condition at Maine Medical Center on June 19 in Portland after having shot himself in the chest with a .38-caliber Derringer owned by the boy’s grandfather, Charles Martin of Mexico.

According to police, Tyler was left with Martin at his Swift River Road home by one of his parents early in the morning of June 19. While Martin was away buying food hours later, the boy found the loaded weapon under a sofa cushion in the living room, according to Martin. Police said the youngster accidentally fired a round, hitting himself in the chest.

The boy then ran down the driveway to a road where Thomas Harrison of Roxbury Pond Road in Mexico saw him bleeding and waving for help. Harrison rushed Tyler to Rumford Hospital where the youth was stabilized and taken to Portland for surgery.

As of June 20, Tyler, whose health was improving, was expected to be released within a few days from Maine Medical Center, according to Martin.

State police investigating the shooting confiscated the handgun, a muzzleloader and a shotgun, and some young marijuana plants Martin said he was growing for a medical condition.

Calls Tuesday to state police Detective Walter Grzyb regarding the investigation, and to Martin about Tyler’s condition were not returned. A Maine Medical Center nursing supervisor contacted by phone early Tuesday evening said he had no information about the boy.