Kim Dorsey’s Murder Investigation Revealed A Swinger Sex Scene & Drug Violence

Main photo: Kim Dorsey [Investigation Discovery]

JACKSONVILLE, FL — On October 28, 2012, Derrick Dorsey returned home from working a 14-hour firefighters shift to a scene of unthinkable horror. Kim Dorsey, his 38-year-old wife, lay dead amid signs of chaos in the couple’s blood-splattered bedroom.

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Kim had been bound with zip-ties, raped, and beaten with a pool cue with such force that it broke in half. Finally, Kim’s attacker stabbed her in the neck and slashed her throat before robbing the Dorseys’ home and then leaving his gasping victim to bleed out alone.

At some point, five bullet holes got blasted into the surrounding walls, but no signs of forced entry turned up. The latter aspect suggested Kim knew, trusted, and had perhaps even welcomed her killer. In fact, she did know him. And so did Derrick.

As police pieced together the trail that that led to Kim’s savage demise, details emerged about the Dorseys’ lifestyle that may have surprised their friends and family — but nothing proved as shocking as what a man they both considered a friend turned out to be capable of doing.

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For the seemingly happily married Kim and Derrick Dorsey, “fidelity” proved to be a fluid concept. It was the couple’s mutual choice, as they had reportedly participated in Florida’s well-known swingers scene in which both Kim and Derrick had additional sex partners of their own.

Lance Kirkpatrick [Florida State Dept of Corrections]

In recent times, though, Kim had reportedly battled depression and opted out of active swinging, per se. For that reason, when Derrick initially happened upon Kim’s body, he immediately feared his wife had committed suicide.

But while Kim had cooled down on the extramarital sex, Derrick had maintained a girlfriend on the side, and he told police that his arrangement with Kim at that point was, “Don’t ask, don’t tell.” In short order, detectives cleared both Derrick and his girlfriend as suspects.

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In addition to being a firefighter, Derrick Dorsey oversaw a part-time contracting business, and he often paid guys on his staff to do work around the Dorseys’ house. Police looked into the men Derrick hired and had some questions about one name in particular: Lance Kirkpatrick.

Not long earlier, the Dorseys counted Kirkpatrick among their closest friends. They’d spent holidays together and Kirkpatrick had even resided in the couple’s home for a stretch. After a while, though, Derrick asked his buddy to move along, motivated at least in part by Kirkpatrick’s drug habit.

As a result, Derrick told the cops that Kirkpatrick would never hurt Kim and, besides that, he was out on a shrimp boat the day she was killed.

In fact, Kirkpatrick was not only on dry land, but he had waited until Derrick left for work before grabbing a key he knew was hidden under a ceramic dog in the backyard. He’d then entered the Dorseys’ home, where he would rape, brutalize, and murder Kim.

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It was the Saturday of a Georgia-Florida football game, an event described as a “secular holiday” in Jacksonville. Lance Kirkpatrick had started the day at a party across town where he “borrowed” an SUV to buy drugs for the gathering.

When Kirkpatrick never returned, the truck owner reported him to the police. Detectives then checked surveillance video in the vicinity of the Dorsey house around the time prior to the murder, and there it was — the SUV Kirkpatrick had made off with, driving straight toward the Dorseys’ residence.

In looking for Kirkpatrick, detectives had tracked down his friend Brian Kiefer, who had been at the same party. Kiefer said he ran into Kirkpatrick the following day, and that Lance was sporting wounds and looking disheveled.

Kiefer also said Kirkpatrick had actually told him he had murdered someone and provided details that only the killer would know — including that Kim Dorsey shot at her attacker five times in a panic before she tried to escape out a window. Cops then quickly picked up Kirkpatrick, who was hiding in the attic of Kiefer’s apartment.

Related: Florida Widow Charged In Cold Case Murder Of Late Husband, 17 Years Later

After a brief, dodgy interrogation, Kirkpatrick shut up and asked for a lawyer. Detectives got a DNA sample from his father and matched it exactly to the crime scene. Kirkpatrick, without question, was Kim’s killer.

In time, police fashioned a theory: After getting high with the money he’d been given to buy drugs for others, Kirkpatrick figured he could rob the Dorseys to pay back the partygoers. Since Kim turned out to be home, Kirkpatrick’s plot went sideways, and he exploded into homicidal rage.

Kirkpatrick’s defense claimed that he and Kim had been lovers and, after sex, she’d attacked him with the gun. He then claimed that his binding her hands and feet, pummeling her with a pool cue, and jamming a knife into her throat, then, constituted “self-defense.”

crime scene photo of broken pool cue [Investigation Discovery]

crime scene photo of broken pool cue [Investigation Discovery]

The jury went with the police version and convicted Lance Kirkpatrick of rape, murder, and robbery. He is presently serving life in prison without the possibility of parole.

For more on the Kim Dorsey case, watch the “Monster at the Gates” episode of Investigation Discovery’s The Last 24 on ID GO now!

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Main photo: Kim Dorsey [Investigation Discovery]

  • Jenna

    Swinging never leads to anything good.