Video released by Colorado's Weld County District Attorney shows the moment Chris Watts stopped to grab breakfast after disposing of his family’s bodies.

The 33-year-old father and husband is seen on surveillance footage taken at a Colorado convenience store at 8am on the morning of August 13, picking up a sandwich and chatting with the cashier.

Watts can be seen in the video clip wearing an orange T-shirt with sunglasses perched atop his baseball cap as he takes his change and puts it into his wallet before walking away from the counter.

Newly released surveillance footage shows Chris Watts buying breakfast at a convenience store shortly after dumping the bodies of his wife and daughters in the oil field he worked in

Watts is shown to be calm and collected during the brief stop at the convenience store

His calm and collected demeanor bellies the fact that he had just dumped the bodies of his daughters Bella, four, and Celeste, three, in an oil tank and buried his pregnant wife Shanann, 34, in a shallow grave in a crude oil field where Watts worked.

Shanann, who was 15 weeks pregnant, and the girls would all be found two days later after a statewide manhunt, after Watts reported them missing and made shifty television appearances pleading for them to come home.

Watts pleaded guilty to murdering his wife and daughters last month after striking a deal with prosecutors that would take the death penalty off the table.

On November 19, Watts was sentenced to five consecutive life sentences for his crimes.

Watts pleaded guilty to killing his wife, Shanann, who was 15 weeks pregnant with their son at the time, and daughters on November 6 to avoid the death penalty

Watts also pleaded guilty to killing their two daughters, Bella, four, and Celeste, three. On November 19, Watts was sentenced to three consecutive life sentences

In the days since his sentencing, authorities have been releasing a number of files related to the case, including police station footage of Watts telling his father that he 'freaked out' and murdered his wife.

Among the recently released evidence is also chilling surveillance footage which was captured by Watts' neighbor, showing Watts leaving his suburban Denver home on August 13 at about 5.30am to dispose of the bodies.

He was captured emerging from the home and backing his truck up into the garage before later driving off down the driveway.

DailyMail.com also exclusively revealed that investigators searching through Watts' mistress Nichol Kessinger's phone discovered that she had searched for wedding dresses a week before the murders and Googled 'anal sex' for 45 minutes prior to her last date with Watts, the night before the murders.

Authorities recently revealed that Watts' mistress, Nichol Kessinger, had Googled wedding dresses, anal sex and how much money Scott Peterson's mistress Amber Frey made off her tell-all book deal in the days surrounding the murders

The final Google search conducted by Kessinger that was noted by investigators came after the murders of August 19 when she looked into how much money Amber Frey — mistress of convicted wife-killer Scott Peterson — made in her tell-all book deal and her net worth, while also searching 'did people hate Amber Frey.'

A search of Watts' phone, meanwhile, found thousands of hidden photos in a secret calculator app that was only accessed by typing in a four digit code. A number of those pics showed a nude or semi-naked Kessinger.

Authorities also released hours of interview footage in the case, including the moment Watts was told he had failed a polygraph test.

Video of the moment reveals that Watts managed to keep his composure after he was very bluntly told by a member of the Colorado Bureau of Investigations that his answers were not truthful.

That agent then began the process of trying to draw a confession of out of Watts, who after talking for some time eventually shut down the interview and demanded to see his father, Ronnie.

Watts then confessed to killing Shanann to Ronnie, who stayed in the interrogation room as the two agents returned, rubbing his son's back while he told them he had murdered his wife.

At that time, Watts denied killing daughters Bella and Celeste, a crime he would not admit to until entering his plea deal at the Weld County Courthouse more then two months after the senseless murders.