JACKSON - Officials have released the sketch of a man they believe was involved in the killing of Lisa Ehlers of Jackson on June 21, 1984.

Asked Thursday whether the unnamed man depicted in the 21-year-old image lived in Sublette or Teton counties, Detective-Sgt. K.C. Lehr of the Sublette County Sheriff's Office said it was "unknown" if the suspect had ever lived, then or now, in "either county."

"It is well known Lisa (Ehlers) lived and worked in Teton County," Sgt. Lloyd Funk of the Teton County Sheriff's Office said when asked about the recently released sketch. "This is where her friends and acquaintances lived."

Funk could not confirm whether the sketch resembled anyone in either county. Because Ehlers died over the county line, Funk emphasized Sublette County was leading the murder investigation.

"Teton County will continue to assist in any way we can," Funk said. "I'm sure the family and friends of Mrs. Ehlers are thankful to see the efforts of Sublette County."

Before the newlywed was found shot dead minutes after 6 a.m. alongside U.S. Highway 191 on a turnout near Bondurant, police say Ehlers stopped at the Bunnery, a Jackson restaurant once owned by her and her husband.

Last year, Funk said that Ehlers had visited the restaurant to pick up some baked goods and say good-bye to friends before hitting the road around 5:30 a.m. It was the first day of summer; the longest day of 1984.

With a windsurf board tied to the roof of her silver Volkswagen Jetta, Ehlers headed south for Florida to rendezvous with her husband, Peter, who along with another man had started a new business venture in Panama City, Fla.

Sublette County Undersheriff Jim Whinnery said in 2006 that Wyoming Department of Transportation employees found Ehlers dead, reportedly face-up in a pool of blood by her still-running car, about 30 miles south of Jackson.

Two blasts from a large-caliber handgun had ripped into her chest and the side of her head, authorities said.

Anyone watching the grisly scene might have noticed the eastern sun breaking over the Gros Ventre Range.

Passers-by later told police they saw two white men standing over Ehlers' body and a "dark sedan" parked nearby.

Police, who say the gun used to kill Ehlers has never been recovered, found the right rear signal to her Jetta blinking.

As far as a motive in her slaying, opinions vary.

Officials have theorized that Ehlers' brutal execution was perhaps intended to "send a message," or the result of a drug deal gone bad. Authorities who searched Ehlers' car reported no drugs being found.

Sublette County authorities would not comment on the results of Ehlers' toxicology report.

Just last month, in a letter to the editor of the Jackson Hole News & Guide, Ehlers' sister, Julie Curtis Applegate, disputed Lisa's killing as drug-related, writing that it was a crime of opportunity after Lisa likely stopped to fix the straps holding down her windsurf board.

"I cannot believe that after all these years," Applegate wrote, "that there isn't someone who knows something, and that more hasn't been done to find her killer. She is in our thoughts every single day."

Inside Ehlers' car authorities reported finding a cooler on the front seat, personal belongings in the back and her telephone on the rear window ledge. In her purse contained about $500 in undisturbed bills.

A coroner's inquest reportedly showed no signs of a struggle or sexual assault.

Lehr said the composite sketch of the man with the princely haircut was based on one eyewitness account.

On Friday, the detective confirmed that unidentified fingerprints were lifted from Ehlers' Jetta. So far, Lehr said, comparisons of the prints against those from new offenders and suspects have not produced a match.

Regarding two motorists driving south toward Pinedale, ahead of the crime scene, who later said they passed two cars headed north toward Jackson, Lehr said the witnesses were flown to California to undergo hypnosis to help jog their memories.

"A gray colored vehicle and dark colored vehicle," Lehr said a report mentioned the witnesses recalling.

Years later, Ehlers' family also reportedly hired a psychic who said the men who stood over Lisa's body "wore a uniform to work."

Ehlers' homicide marked the end of three gangland-style executions involving Teton County residents under 30, which likely began eight months earlier with the disappearance of 23-year-old Eric Cooper in October 1983.

Cooper's skeleton was found by hikers in August 1986 around Signal Mountain, about 45 miles outside of Jackson. Inside his skull: a shattered .22-caliber slug.

Last year, Jackson police revealed they had retrieved a gun of the same caliber and from the same era left in a bank deposit box.

On May 12, 1984, Jon Rice, a credit officer with the now-defunct First Wyoming Bank, was found bound and shot in the back of the head in his condo at the Aspens off the Moose-Wilson Road.

The same day Rice was executed, his acquaintance, Stanley Kerr, a Florida real estate agent, was shot dead while building a dog pen in New Port Richey, Fla. Rosemary Kerr and her boyfriend, Wayne Arthur Cady, were later convicted of conspiring to kill her husband.

Records show that during the trial, Cady's friend told the court, "(Kerr) had a large life insurance policy that (Rosemary Kerr and Cady) would pay me, plus give me property out West."

Authorities have said the Kerrs owned land in Jackson.

Like Cooper, Funk said Rice too had been killed by a .22, but from a rifle belonging to his roommate, Gary Gilbert. Gilbert, who was later convicted in Wyoming on heroin and cocaine trafficking charges, was out of town at the time.

Anyone with information on Ehlers, Rice, or Cooper is encouraged to call local authorities or the Sublette County Sheriff's Office at (307) 367-4378.

Lisa Ehlers was 25. Eric Cooper was 23. Jon Rice was 26. No one has ever been arrested in connection with any of their unsolved homicides.