A community was left reeling after Byron, Wyoming, mother Tranyelle Harshman killed her four children and then turned the gun on herself on February 10. Three of Harshman’s four daughters died at the scene, but 7-year-old Olivia succumbed to her injuries at a local hospital on Saturday, Feb. 15.

The 7-year-old girl who was hospitalized after being shot by her mother in an apparent murder-suicide has now died, following the deaths of her three sisters.

Olivia was shot in the head by her mother, Tranyelle Harshman, 32, at the family home in Byron, Wyoming , on Feb. 10, in a murder-suicide rampage in which the mom also killed her 9-year-old sister, Brailey, and her 2-year-old twin half-sisters, Brooke and Jordan, before turning the gun on herself.

The 7-year-old surviving sister of a Wyoming mom's murder-suicide that killed her three young siblings has also died. Tranyelle Harshman shot her four daughters on Monday, Feb. 10.

Olivia Blackmer and her three sisters were shot by their mother, Tranyelle Harshman, in their Byron, Wyoming, home Feb. 10 before Harshman turned the gun on herself, according to the Big Horn County Sheriff's Office. Brailey, 9, Brooke, who was almost 3, and Jordan Blackmer, 2, all died at the scene.

The family of a 7-year-old girl who was the sole survivor after her mother murdered her three sisters before taking her own life has given a heartbreaking update on her condition and said she is “heavily sedated.

The seven-year-old girl flown to Primary Children's Hospital after she was found shot in an an apparant muder-suicide has died.A 7-year-old girl was flown to Pr

Olivia Blackmer, 7, was the lone survivor of a Feb. 10 murder-suicide in Byron, Wyoming, by which her three sisters and mother died last week.

Olivia is with her sisters now,’ her grieving family wrote on Sunday

Olivia Blackmer spent five days fighting for her life after she was shot by her mom in a horrifying murder-suicide that saw her three sisters shot dead but succumbed to her traumatic brain injuries on