Valle (middle) with her two children, Marian (left) and Lindsay (right).

Prosecutors have added a second murder charge against a 32-year old Lorna Valle. She was initially charged on Friday, February 17 with murdering 1-year old Lindsay and trying to murder her older sister.

Her 5-year old daughter, Miriam Taque, died when was she taken off life support on Wednesday.

Prosecutors then amended the charges, which include the special circumstance allegation of multiple murders and two felony counts of assault on a child causing death. They have yet to decide if they will seek a death sentence.

Valle appeared in court on Friday morning, but her arraignment was postponed until March 15th. She remains in jail without bail.

Editor’s note: The older daughter was previously identified as Marian, but the LA Times reports the official death record from the coroner’s office lists her name as Miriam Taque.