Early on Aug. 13, 2018, in their Frederick, Colo., home, Chris Watts strangled his wife of five years, Shanann — who was 15 weeks pregnant with a son she planned to name Nico. Six months later, after pleading guilty to nine counts, including first-degree murder, and being imprisoned for life, he finally confessed the gruesome details of his crimes: How he wrapped Shanann’s lifeless body in a sheet, put her on the floor in the back of his truck and drove her and their daughters, Bella, 4, and Celeste, 3, to his oil field job site, where he smothered the girls with a blanket before dumping them into two 400-barrel crude oil tanks, then buried Shanann in a shallow grave.
Now, two years later, new horrific details have emerged. Shanann’s…