In the quiet city of Simpsonville, South Carolina, a chilling tragedy unfolded in the fall of 2016 that would grip the community for years to come. Cati Blauvelt, a 22-year-old woman known for her warmth and passion for animals, vanished one October evening. What began as a desperate search quickly turned into a heartbreaking discovery: Cati’s lifeless body was found stuffed inside a concrete box in the basement of an abandoned farmhouse. The circumstances surrounding her death were gruesome—she had been stabbed, with a knife blade still lodged in her neck. The loss devastated her mother, Patti Piver, and her family, who could scarcely believe that such violence could touch their lives.
From the outset, suspicion fell on Cati’s husband, John Blauvelt, a former Army staff sergeant and local recruiter. When investigators Cheryl Schofield and Keith Morecraft delivered the grim news of Cati’s death to him, his reaction was unsettlingly detached. Unlike most grieving spouses, he asked no questions about the circumstances of her death or the whereabouts of her body, leading officers to suspect he already knew more than he let on. Though they had no immediate evidence to arrest him, the investigators’ instincts were clear: John Blauvelt was their prime suspect.
John Blauvelt’s public image had once been that of a decorated military man, respected in the community for his service and seen as a role model by many local teenagers. He met Cati in 2014 near his recruiting office, and soon they began dating. Blauvelt encouraged Cati to enlist in the Army, but after a brief stint, she was medically discharged due to a spinal issue. Meanwhile, Blauvelt’s charisma and military stories made him a magnetic figure among local youth, including Cati’s friends like Aly Somerville, who described him as a seemingly dependable mentor.
Despite this outward charm, Blauvelt’s relationship with Cati raised red flags within her family. He showed little interest in her family and was distant when it came to forming meaningful connections. Their relationship escalated quickly, culminating in a surprise courthouse wedding that shocked Cati’s loved ones. Yet the honeymoon was short-lived. Within months, tensions escalated, fueled in part by Blauvelt’s new 17-year-old girlfriend, Hannah Thompson, who would soon become a central figure in the unfolding tragedy.
After their marriage, Cati moved into Blauvelt’s home, a four-bedroom house near Simpsonville. However, rather than building the family life she dreamed of, the house became a hub for teenage parties involving drugs and alcohol—activities Blauvelt appeared to encourage. Cati’s frustration grew, and she demanded an end to the wild gatherings. Meanwhile, Hannah Thompson’s presence only added fuel to the fire. Investigators later described Thompson as Blauvelt’s “puppy,” someone who followed his every command unquestioningly and harbored a deep animosity toward Cati.
The marriage unraveled rapidly. Less than three months after tying the knot, Cati moved out. Blauvelt and Thompson wasted no time moving in together, and their relationship sparked concern among family and friends. Thompson’s father reported her missing after two weeks of no contact, prompting police to visit Blauvelt’s home. When officers arrived, Blauvelt refused to come outside, forcing a tense standoff with weapons drawn. He was eventually arrested for contributing to the delinquency of a minor, marking the beginning of his public fall from grace.
The situation worsened when Cati disclosed to police a harrowing incident from the previous month: Blauvelt had allegedly pointed a gun at her head and threatened to kill her and her family. This domestic violence charge resulted in a restraining order against Blauvelt and his suspension from his Army recruiting duties. The military stripped him of his field responsibilities, reassigning him to a desk job, a move that reportedly enraged Blauvelt, who saw his career and identity unraveling.
Despite the restraining order, Blauvelt and Cati maintained some contact, mainly because Cati’s dog remained at his house. Patti Piver, Cati’s mother, was consumed with fear for her daughter’s safety, sensing the danger lurking beneath the surface. Meanwhile, Blauvelt’s anger and desperation grew, and those close to the couple recalled his repeated threats to kill Cati, blaming her for destroying his military career.
On October 24, 2016, Cati was last seen alive at her job at PetSmart. When