India, May 6 -- A quiet Monday evening in Houston's River Oaks neighborhood turned tragic when police found a family of four dead, including a couple and two children inside their home during a welfare check. Authorities believe the deaths were the result of a murder-suicide and the investigation is ongoing.

At 5:26pm local time on Monday May 4, Houston Police Department officers were called to a home on Kingston Street near Avalon Place in the River Oaks area after the family's babysitter and one of the victims' sisters raised the alarm and they had not seen or heard from the family since Sunday night, per KHOU.

Officers arrived around ten minutes later and entered the home, where they found four people dead, a father, a mother and two...