A Texas man said his grandmother was shot in a drive-by shooting. Now he faces a murder charge, officials say

Marcus Hanson tried to stage his grandmother's death as the result of a drive-by shooting, sheriff's say.

(CNN)A 23-year-old Texas man allegedly shot his grandmother early Sunday and tried to stage her death as a drive-by shooting, according to the Harris County Sheriff's Office.

Marcus Hanson has been charged with the murder of his grandmother, 68-year-old Shelia Crosslin, the sheriff's office said in a statement.
Deputies responding to reports of a drive-by shooting in north Harris County just before 1 a.m. found the woman "lying in her bed and deceased from apparent gunshot wounds," the sheriff's office said.
      Hanson told deputies he heard "someone begin shooting into their home," the release said. He said he grabbed a handgun, went outside and fired several times at a vehicle fleeing the scene, according to the release.
        Hanson "attempted to stage the scene," Sheriff Ed Gonzalez said in a tweet.
          CNN has not been able to determine whether Hanson has an attorney.
          While at the house, the deputies received a call about a second shooting victim in a home next door. There they found an 11-year-old girl who had a graze wound to the head.
          "Possibly in retaliation," for the alleged drive-by shooting, "a relative of the female returned gunfire & inadvertently struck an 11-yr-old female in an adjacent residence causing her minor injury," Gonzalez tweeted while the investigation was underway.
          The girl was treated on scene for minor injuries and released to her parents.
            "After conducting several interviews and reviewing all physical evidence," investigators charged Hanson with his grandmother's death, according to the release.
            "No motive for the shooting has been determined," the sheriff's office said.