New York massacre sees three women including a grandmother stabbed to death in home

Three women including a grandmother have been stabbed to death at their home in New York by a suspected member of the family.

Police believe the grandmother's relative fled the scene around 5am as the women aged, 26, 46 and 57 were found in the Queens home by an assistant carer.

The three women were found around 10.40am in Brookville, with one of the victims said to be bedridden, when a worker arrived to help the grandmother.

However, when the assisted living carer arrived she discovered the three women dead and called the police who are now investigating the murders.

The grim murders come just days after a son was sentenced to prison for 20 years for brutally murdering his mum in another shocking story of brutal family violence in America.

Three women were found stabbed at their home in New York early this morning (stock image) (Getty Images/iStockphoto)

In the unrelated case, David Sumney, 33, from Pennsylvania, US, documented the killing of his mum Margaret Sumney, 67, with over 275 photos and posed next to her dead body in August 2019.

The killer was given a 20-year-sentence after signing a plea which saw Summey get off with a third-degree murder charge - much to the anger of his mum's sisters who argue he should face first-degree murder charges.

Sumney was arrested just days after he killed his mum in Pennsylvania as his mum's debit card, necklace, bracelet, and three cheques were found in his belongings.

David Sumney brutally murdered his mum and took selfies of her dead body (Facebook)

He then booked a hotel room in Philadelphia after the killing and gave a hotel manager a set of of pearls belonging to his mum as he remarked "from a special lady to a special lady."

Prosecutors also accused Summey of searching "how long does it take before a body starts to decompose?' and "how long do you wait to dispose of a body?" on the internet in 2020.

Mary Ellen, Margaret's older sister, said her nephew should have been given the death penalty whilst his other aunt, Ann, begged the judge to "not give him a second chance."

He was found to have his mum's debit card, necklace, bracelet, and three cheques in his possession (Allegheny County Police Department)

The killer's son took 277 pictures of his dead mum after the attack (Facebook)

Margaret's niece, Margo, described in court on Thursday the scene inside her aunt's home as she noticed a pungent "metallic smell."

She told the judge: "He is the epitome of pure evil. We will never find peace with any of this."

Ellen, Sumney's half-sister, said on Zoom she felt anger and disgust over the sentence as she chose not to attend the court in person as her wishes for a higher sentence were "repeatedly ignored."