When a Colorado man advertises for a new roommate, he unwittingly attracts the attention of a profoundly sadistic murderer.

Investigators attempt to identify the most difficult kind of killer to catch in this episode of Seen Alive.

I'm your host, Leah, crime analyst by day and true crime storyteller by night.

I'm your host, Scott.

Before we dive into today's story, I'd like to issue a quick heads up regarding the content.

This case involves discussion of torture.

Although we won't dwell unnecessarily on the details of that torture, it may nonetheless be

disturbing to note that the victim spent his last

hours in tremendous pain. With that being said, Oki Kite Jr., who went by Al, was last seen alive on May 22nd,

2004. At the time, he was a 53-year-old living in a quiet area of Aurora, Colorado. He worked as a project manager

for a Denver-based consulting firm, a natural fit for him considering his 30-plus year work

history as an accountant in the engineering industry. His neighborhood was usually peaceful,

which is just one of the many reasons why what happened to him there was so shocking.

Al had once been married, but he and his one-time wife had divorced amicably years before his death.

His stepdaughter was an adult, and since he had no other children, this meant he lived alone.

Or at least, he would have if he hadn't rented part of his home out.

He did have a girlfriend, but she lived and worked in a different state,

so their relationship was a semi-long distance one.

And in any case, his home had more room than he needed,

so renting out the basement apartment was a practical way to bring in some extra income.

For years, a couple had rented from Al, who was widely considered to be a very

friendly, easy to get along with guy. In the spring of 2004, though, the couple decided to move,

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