LAYTON, Utah (ABC4) — The Layton man accused of killing his wife and her parents before calling 911 and posting on Facebook reportedly told authorities he had been “thinking of doing this a few days ago,” according to the probable cause affidavit.

Jeremy Lake Bailey, 34, was arrested after allegedly shooting three family members and three of their four dogs in their home near 1800 E Gentile St. on Friday, May 19.

Authorities said around 9:45 a.m. Bailey called dispatch to report “there will be a murder-suicide” and provided his address. He allegedly told police multiple times on the phone the victims were already dead reportedly saying he had killed them around 20 minutes prior.

Police said Bailey called dispatch again when police arrived to tell authorities he was leaving the house to be taken into custody. He then reportedly complied with all police commands and was arrested without incident.

Authorities then swept the home reportedly finding the victims and deceased dogs in multiple areas of the house. On the upstairs level, police report finding one deceased victim in each of the three rooms.

The victims have been identified as his wife, Anastasia Stevens, and her parents Becky and Donald Stevens who were visiting.

Around the same time Bailey first called the police, he also reportedly posted through his wife’s Facebook account. The post read: “MASSACRE SUICIDE Jeremy Bailey JUST KILLED EVERYONE Becky Stevens Don Stevens AND 3 OF THE 4 DOGS 1832 EAST GENTILE STREET LAYTON.”

The post received dozens of comments from friends and loved ones reaching out, many of which asked Anastasia Stevens to call them back so they would know if she was safe and if the post was true.

Earlier in the day, police said one of the victims had sent a message to a therapist saying “I think we may have a very real problem,” according to the affidavit. The message reportedly said they had uncovered something and “it’s really bad. Like scary. I think it may be time for legal interference.”

The victim also reportedly told the therapist that they could not talk because Bailey was still in the house.

Police said Bailey told them he had stored his guns in a friend’s garage because he was “thinking of doing this a few days ago.”

He reportedly found another gun he had forgotten about that belonged to one of the victims on the day of the shooting. Police found evidence of him purchasing ammunition around 9 a.m. that morning.

While in custody, police said they overheard Bailey say “I can’t believe I did it” in an “excited” way. He also reportedly said he would rather have the death penalty than live his life in prison and asked if a firing squad was still an active punishment.

Bailey was booked in the Davis County Jail facing three counts of aggravated murder and three counts of felony discharge of a firearm, both first-degree felonies. He also faces three counts of aggravated cruelty to animals, a misdemeanor.