Corrections & Clarifications: In an earlier version of this article, the location of where the bodies were found was incorrect .

An affluent Scottsdale community became the site of a homicide investigation after police officers who were called to make a welfare check discovered the remains of three family members killed in a murder-suicide.

Scottsdale police responded to a gated community near Indian Bend Road and Via De La Sendero at about 10 a.m. March 26, when they spotted two bodies inside the home. After entering the house, officers found a third person dead in a separate room.

The victims were identified as Tod Daniel Lonergan, 51; Lisa Kay Lonergan, 46; and their 15-year-old daughter, Sophia Brin Lonergan.

Here is what we know so far about the homicide investigation and what happened to the family.

How did the family of three die?

According to the Maricopa County Office of the Medical Examiner, Tod died by suicide with a gunshot to the head, while Lisa and Sophia died by homicide.

Scottsdale police spokeswoman Sgt. Allison Sempsis confirmed to The Arizona Republic that the three were a husband, wife and daughter.

Why were officers performing a welfare check?

Police said that a concerned coworker requested the welfare check after one of the family members failed to show up for work and did not respond when they tried to contact them.

What was the cause of death for each of the three?

The medical examiner was still investigating the primary cause of death for the family members as of March 31, and medical examiner reports for the mother and daughter were not available. The father's cause of death was reported to be a gunshot to the head.

What led up to the murder-suicide?

Additional details such as what led to the deadly incident and whether Scottsdale police had been called to the home before were not immediately available. The investigation remained ongoing as of March 31.