Uriah was placed in the heat of the battle and then deserted. He and many of his loyal platoon were killed. Many paid the price for David's willful sin with their lives. This conspiracy is so sinister because David knew Uriah would not retreat. His honesty insured his death.
Dead men tell no tales.
Uriah couldn't disown the child now. Finally Bathsheba became a widow. After seven days of mourning, she became David's 8th wife. One sin leads to another. We gaze at the slimy sludge seeping out of David's feet of clay.