Grieving Ontario school honors memory of sisters who were allegedly killed by mother

ONTARIO, Calif. (KABC) -- Grieving students gathered at school to remember two Ontario sisters police say were murdered by their mother.

They held a vigil for 14-year old Amy Nguyen and her 4-month old sister at Woodcrest Junior High.

Last week, the girls' father returned home to find them dead in the garage and his wife, Linda, unresponsive.

Amy was a special needs student.

One of her classroom aides is among the many shaken by her death.

"She always used to say hi to me," said Sergio, a class aide for Amy. "It really made my day when she said hi to me."

Linda Nguyen has been charged with murder.

She's being held without bail.