The grandparents of murdered sisters Celeste and Bella Watts opened up about their heartbreak at learning they would not get to see the girls before their were buried during an interview with Dr Phil.
'We got permission from [Watts'] side of the family to have the grandchildren and bury our grandchildren with their mom,' said Shanann Watts' father Frank Rzucek.
'But the hardest thing was flying them here, because they were in crude oil for four days. So they were flammable. So we couldn't cremate them. They would have blown up a building.'
He continued: 'They had to have a bigger coffin and then they had to seal it with a certain wrap, so the gasses wouldn't leak out. That's pretty sad, isn't it? So we three here never got to say good-bye to our family or see them.'
His wife Sandy then added: 'Never got to hug them. Never got to say "I love you" like most people do.'
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Speaking: Frank Rzucek and his wife Sandy (above) spoke about the deaths of their daughter, granddaughters and grandson-to-be on The Dr Phil Show this week
Murders: Bella, 4, and Celeste, 3, were dumped in two separate oil tanks after they were suffocated by their father (above with mom Shanann a few months before the murders)
Recovery: Chris dumped the bodies of Celeste and Bella into oil tanks and buried Shanann in a shallow grave (officials removing the bodies of Celeste and Bella)
Final resting place: Shanann's mother Sandy explained: 'Never got to hug them. Never got to say "I love you" like most people do' (Celeste, Bella and Shanann's grave above)
The process of removing the girls' bodies from massive oil drums began at 5am on the morning of August 16, and would go on for almost 14 hours, with a report noting that at 6.45pm that evening members of the Colorado State Patrol cleared the scene.
In that time, the oil from the two 400-barrel tanks on the scene were manually drained by workers, who carefully poured the liquid over metal screens to collect any possible evidence.
Then, once the tanks were emptied, men in self-contained breathing gear entered and removed the bodies of Bella and Celeste, whose skin came off their bodies as they were passed out of the tanks.
Their mother and unborn baby brother Nico were found just 100 yards away in a shallow grave.
The report reveals that the diameter of the oil tank's opening was only 8 inches, meaning it would have been too small to fit Shanann's body.
The troopers who headed up the retrieval process arrived on the scene around 9am on the morning of August 16.
'While the first crude tank was being off-loaded, Trooper Bandy, Reeder and I put rope handles on two containment pools,' wrote Tropper Wilson.
'We anticipated the bodies to be covered in crude oil and were going to use the pools to
