Gary Nickal claimed that his wife, Molly Nickal, took her own life at their residence while their three kids were at home.
But police didn't believe him.
Gary has been arrested on suspicion of murder.
At this writing, the charge hasn't been formalized. However, Gary is due back in court later this week.
Molly's Facebook page identifies her as a native of Mankata, Minnesota who attended Minnesota State University in Mankato before moving to Colorado — specifically Westminster.
A January 2014 post reads in part, "Cold! I am tired of this cold state....need to move. My slippers are warming on a boot warmer (my feet have been ice cubes all day)." A subsequent post notes that the clan relocated to Colorado the following April.
Her most recent job is listed as a senior portfolio manager at a local bank.
The latest post on Molly's timeline dates back to 2015, and while the gallery sports photos aplenty of her with Gary and two daughters, there are no images of her third child, who is reportedly three months old.
Gary's Facebook page is sparser, but it features a couple photos of the older kids, who are now seven and eight years old, respectively.
An item notes that he began working as a graphic arts sales executive for Canon this past August. But there are no images of the new baby in his gallery, either.
Cut to 6 a.m. on Thursday, April 28.
That's when the Westminster Police Department received a call from a man — Gary, presumably — about what the WPD describes as "a possible suicide" on the 5800 block of 94th Place.
He told the dispatcher that he'd heard a gunshot and found his wife unconscious on the bathroom floor, the department maintains.
Officers rushed to the scene. But according to the WPD, the cops "immediately noticed the physical evidence did not match the story the male subject was telling them."
The department adds that although the kids were in the home at the time of the shooting, they weren't injured; they're currently in the care of family members.
Approximately 36 hours later, at 6 p.m. on Friday, April 29, an arrest warrant was issued for Gary .
He was taken into custody on suspicion of first-degree homicide.
Thus far, police haven't shared the information that led them to suspect that Molly hadn't taken her own life. But the overall scenario recalls the case of Tom Fallis, who said his wife, Ashley Fallis, had shot herself following an argument over smoking marijuana. He was subsequently arrested and charged with killing her, but a jury acquitted him last month after the defense team argued that Ashley was distraught over a miscarriage the morning before the fatal shot was fired.
In the meantime, Gary remains at the Jefferson County jail. He's due in court at 10 a.m. on Friday, May 6, at which time we should learn about prosecutors' next move.
Look below to see two booking photos of Gary, followed by a 9News report about the latest developments.