An Oklahoma man who was doing target practice in his backyard on Christmas is believed to have shot and killed an elderly woman a few blocks from his home, authorities said.

Cody Wayne Adams, 33, has been charged with first-degree manslaughter in connection with the deadly shooting, court filings show.

The victim was on a covered front porch with family members at a residence in Comanche when she was shot Thursday afternoon, according to the probable cause affidavit. She was holding a baby in her left arm while seated on a love seat when she was struck in her right upper arm, according to the affidavit. The bullet then entered her chest cavity, it said.