Police say a Layton man killed three members of his family — including his in-laws visiting from Nevada — and then called 911 to confess what he had done.

Jeremy Bailey, 34, called police about 9:45 a.m. and stated that he had just killed his wife, his mother-in-law, and his father-in-law, according to Layton police.

Officers arrived at the home of Bailey and his wife, 36-year-old Anastasia Stevens, 1832 E. Gentile St., where Bailey was ordered to exit the house and was taken into custody without further incident. Layton Police Lt. Travis Lyman says Bailey was still on the phone with dispatchers when officers arrived. Instructions were relayed to Bailey through dispatchers to go outside.

Lyman described Bailey’s demeanor as being “upset” but cooperative.

Inside, police found the bodies of Stevens, 61-year-old Becky Stevens who was Anastasia Stevens’ stepmother, and 73-year-old Donald Stevens, Anastasia Stevens’ father. According to police, Becky and Donald Stevens were visiting their daughter and Bailey from Nevada. Neighbors say they may have been intending to stay for the summer to help with alleged marriage problems between their daughter and Bailey.

“In addition to the three victims, three of the family’s dogs had also been killed,” police said in a prepared statement. “A motive for these crimes has not been determined yet, and the cause of death is still being investigated.”

Lyman noted, however, that it appeared the victims suffered gunshot wounds.

Bailey allegedly told police there was a brief argument earlier in the morning prior to the killings, but did not give details on what it was about, according to police.

No other details were immediately available. As of 3:30 p.m., Bailey was still being detained at the Layton Police Department for questioning.

On Anastasia Stevens’ Facebook page, a message was posted at 9:43 a.m. — two minutes before Layton police were called — stating, “MASSACRE SUICIDE Jeremy Bailey JUST KILLED EVERYONE Becky Stevens Don Stevens AND 3 OF THE 4 DOGS 1832 EAST GENTILE STREET LAYTON.”

Lyman said investigators are aware of the post and were trying to determine Friday who made it.

Neighbors say they have heard yelling coming from the house in the past. Lyman said his department does not have a lot of history with the home.

Nikki Weekes lives down the street from where the killings occurred. She said the residents moved in around five years ago. Weekes didn’t interact with them but frequently saw them out building elaborate structures and decorations in their yard. The neighborhood is older and residents tend to keep to themselves, she said.

This story will be updated.

Contributing: Gabrielle Shiozawa