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It's just a horrible person. I think he just like looks for this high in life that he just wasn't

getting through the military, through marriages, through kids, through drugs, through drinking,

and he just kept pushing and pushing until he got it. I just hope he's not out there hurting anybody else.

I'm hurting anybody else's family the way he did mine. He's done enough damage.

It's October 24th, 2016. 22-year-old Katie Boydder Blavvelt is finishing her shift at a pet store

in her hometown of Simpsonville, South Carolina. As she leaves the store, her cell phone rings.

It's her 18-year-old niece asking Katie to hang out. They make plans to meet in one hour,

but Katie never arrives. Calls and text messages to Katie's phone go unanswered.

Her family has no idea where she could be. Two days later, Katie is found, stabbed to death in

...