Chris Watts took daughters to a party, fed them pizza and tucked them into bed before murdering them and their mum
CHRIS Watts planned to kill his wife and daughters on the same day he took his little girls to a birthday party.
The cold-hearted monster even text a co-worker laying plans to dump their bodies as they Bella, 4, and Celeste, 3, played, then took them home for pizza before murdering them in their beds.
At 5pm he text co-worker Kodi Roberts to say he was going to go to a far-out oil fields that managed by his company, Anadarko Petroleum Corporation the following day.
This was where his girls' and wife's bodies would later be found.
Talking to cops in interview, Watts said he took his daughters home, gave them both showers, fed them snacks and tucked them into bed.
Hours later they were murdered, alongside their mum Shannan.
Shannan's dad Frank Rzucek saw Watts and Bella on Facetime that evening, telling cops she was happily eating pizza.
Watts said Bella woke up twice in the night to ask when her mum was coming home.
The sister of the birthday boy who threw the party told cops Watts had asked her to watch the girls a day earlier.
It later emerged he was visiting his mistress, Nichol Kessinger.
Watts had pretended he was at a Colorado Rockies baseball game.
He booked the sitter, messaging: "Do you think McKenna is available to watch the girls for a few hours tomorrow night? I won a raffle at work for a Rockies game.
"lt's with people I don't know from work, but I haven't been to a game in a while where the kids aren't involved and only last an inning lol."
Watts' co-worker Roberts told investigators it was "unusual" for Watts to text him on a weekend.
He also confirmed Watts arrived at the isolated oil site early and alone, and made regular trips to and from his vehicle.
He did not realise that moment earlier Watts had buried Shannon in a shallow grave, and dumped the two girls in oil tanks.
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Yesterday, we revealed how chilling text messages between Watts and his wife showed how their marriage was crumbling before he killed her and their two young daughters.
The messages are contained in newly released documents, which also include an interview with the triple murderer's lover, Nichol.
Watts, 33, was sentenced to life in prison on Monday.
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