According to Weld County Sheriff's Office, the four people were found in the 11400 block of Hot Springs Drive. That subdivision is near CR 3.5 and Highway 119, just east of Longmont.
Originally, Weld County reported there were five people dead inside the home. Later, they corrected themselves and said there were four found.
Police say it happened around 4 a.m.
According to deputies, three of the victims were adults. Their exact ages are unknown at this time.
Police say a female caller got on the phone with 911 and reported where the address. At that point, the dispatcher told police they heard "No, no, no" and heard gunshots in the background of the call. Later, a man got on the phone and threatened to kill himself. The dispatcher then heard more gunshots.
It is unknown at this time whether the deceased persons lived at the location of the shooting.
source:KUSA