An “elderly” woman died after sustaining critical injuries when her live-in grandson allegedly assaulted her at their Menifee home, police said Tuesday.

Investigators said Andrew Joseph, 41, injured his grandmother’s face during an altercation at around 1:30 p.m. Friday in the 26000 block of Ridgemoor Drive.

The victim walked to a neighbor’s home for help, and the neighbor called police, according to the Menifee Police Department.

Paramedics took the grandmother, whose name was not released, to a hospital, where she died, police said.

Family members identified Joseph as the suspect, but by the time officers arrived at the home, he had fled.

Joseph was later arrested at a family member’s home in Hemet and was booked into the Cois Byrd Detention Center on suspicion of attempted murder.

Joseph remained jailed in lieu of $1 million bail, and police said Tuesday detectives will meet with prosecutors to upgrade the charge to murder.

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