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Delaware County woman accused of stabbing daughter to death days before Christmas charged with first-degree murder

Diane Grovola, 57, told her husband "I stabbed our daughter" when he arrived home Dec. 23, according to court documents.

The home of Diane Grovola, who is accused of stabbing her 23-year-old daughter to death in Upper Darby Township last week (Monday, Dec. 29, 2025).
The home of Diane Grovola, who is accused of stabbing her 23-year-old daughter to death in Upper Darby Township last week (Monday, Dec. 29, 2025).Read moreJesse Bunch

A Delaware County woman was charged with first-degree murder for allegedly stabbing her 23-year-old daughter to death in their Upper Darby Township home two days before Christmas, authorities say.

Police found Diane Grovola, 57, naked, covered in blood, and suffering self-inflicted stab wounds when they responded to a 911 call at the family residence that morning, according to the affidavit of probable cause in her arrest.

Grovola’s daughter was in an upstairs bedroom with knife wounds to her face, chest, legs, and back. Her eyes were open but she was unresponsive, the affidavit says. She was pronounced dead shortly after.

“Sorry, I should have stabbed myself first,” Grovola told officers as they placed her in wrist restraints, according to the affidavit.

Grovola’s husband, the young woman’s father, was first to discover the distressing scene.

The man arrived at the home on South Bishop Avenue in the Secane section around 6:30 a.m. after returning from a shift at Philadelphia International Airport, the affidavit says. He had stopped at McDonald’s to get breakfast for his family.

Once inside, the man was greeted by the family dog, which had suffered knife wounds to its abdomen and “got blood on his clothing,” according to the affidavit.

He found his wife seated on the living room sofa with a knife in her hand.

“I stabbed our daughter,” she told him, according to the affidavit.

As her husband dialed 911, Diane Grovola told him she did not want to live anymore and began to stab herself in the chest, according to the affidavit.

The operator told the man to flee the residence.

During that time, Grovola stripped naked and began breaking items in the kitchen until police arrived. They eventually recovered a large stainless-steel knife that appeared to have blood on it, the affidavit says.

In addition to first-degree murder, prosecutors charged Grovola with third-degree murder, possessing an instrument of a crime, and aggravated cruelty to an animal that resulted in death.

She is being held in the George W. Hill Correctional Facility and was denied bail, court records show.

Her arraignment is scheduled for Jan. 6 at 9 a.m.