New details are emerging about 15-year-old Landon Ghekiere, as investigators and grieving family members continue trying to piece together what happened during the devastating attack that claimed the lives of eight members of a Montana family.

Landon was among the victims killed during the August 23 attack at a family home in Billings. Family members have described the teenager as patient, protective and loving, remembering him as a devoted older brother who was looking forward to getting his driver’s license and beginning another school year.

One of the most heartbreaking details to emerge involves Landon’s 12-year-old sister, Charlotte. According to family members, Charlotte made a 911 call during the terrifying incident in an apparent attempt to get help for her family. Her actions have led relatives and friends to describe her as a hero.

The situation became even more chaotic when the residence was engulfed in flames. Responding officers encountered an active shooting scene, while the fire made the rescue operation extremely dangerous and complicated efforts to reach those inside.

Now investigators are working to reconstruct the critical minutes inside the home. Emergency calls, police observations, the fire investigation and witness accounts could all help establish the sequence of events and explain how the attack unfolded.

The latest information also highlights just how quickly the situation escalated. Authorities received reports of gunfire and an unconscious child before the residence became engulfed in flames. The suspected attacker was later found outside the home and died from a self-inflicted gunshot wound.

For Landon’s family, however, the investigation is about more than reconstructing a crime scene. It is also about remembering a teenager whose life was cut short. Relatives say he was a caring older brother, and his family had been looking forward to seeing him reach milestones that will now never come.

Investigators have not publicly established a motive for the attack, and authorities continue examining the circumstances surrounding the killings and subsequent fire.