Rebecca Dowski and Cathy Thomas

The first two known victims were Cathleen Marian "Cathy" Thomas (27), a United States Naval Academy graduate, and College of William & Mary senior Rebecca Ann “Becky” Dowski (21), a business management major working as a stockbroker at the time of the murder. On the morning of October 12, 1986, a pedestrian jogger saw a car, a white 1980 Honda Civic, down an embankment at the Cheatham Annex Overlook on the Colonial Parkway, seven miles east of Williamsburg. The vehicle had veered off the road and into thick, dense shrubbery, only a few feet from a 15-foot drop into the York River. A highway patrolman was called to the scene and discovered Thomas and Dowski's bodies inside Thomas' Civic.^[4] The lesbian couple had disappeared after leaving a computer lab at William & Mary on October 9.

An autopsy found rope burns on both womens necks and wrists as well as signs of strangulation. Their throats had been slashed so deeply that they were nearly decapitated, and the killer had covered the bodies and vehicle with diesel fuel but had not lit them on fire.^[5] Over 100 latent and full prints were found on the interior and exterior of the car, but they matched to no one in police records. Dowski’s body was found in the backseat of the car, while Thomas' was found stuffed into the hatchback. Thomas apparently struggled with her attacker as a clump of hair was later found between her fingers. Both women were fully clothed and there was no evidence of sexual assault. Authorities ruled out robbery as a motive, since both women’s purses were located within the vehicle, and no money or jewelry had been taken. At that time the police believed that the murders happened elsewhere, as there was not much blood in the car itself.

David Knobling and Robin Edwards

On September 23, 1987, salesman David Lee Knobling (20) and eighth-grade student Robin Margaret Edwards (14) were found shot to death around 100 feet apart after being washed ashore with the tide at the Ragged Island Wildlife Refuge near Smithfield. The couple had been last seen on September 19 after Robin had snuck out of her house to meet with David at an arcade. Both victims had been shot; Edwards in the back of the head execution-style, and Knobling twice, once in the head and once in the shoulder. Both were partially clothed; Edwards was found with her jeans unfastened and her bra around her neck. Investigators were unsure if a sexual assault had taken place since, despite Edwards being underage, it was presumed that she and Knobling had a sexual relationship.

Knobling's pickup truck, a black Ford Ranger, had previously been discovered on September 21 by a patrolman at the wildlife refuge's parking area, with the wipers, engine and radio still running and some articles of clothing inside. Both doors were left open and the driver’s side window was partially rolled down, which caused police to speculate that the perpetrator either was or had been posing as a uniformed officer. Knobling's wallet was found inside the pickup, which ruled robbery out as a probable motive.

Authorities immediately linked the double-murder of Knobling and Edwards to that of Dowski and Thomas because although their deaths did not occur on the Colonial Parkway, both sets of victims were couples who had been killed at or around lovers' lane areas, and the two locations were only about a thirty-minute drive apart. ^[6]

On January 8, 2024, it was announced that DNA evidence revealed the identity of Knobling and Edwards' killer as Alan W. Wilmer Sr., a hunter and fisherman who was also linked, via DNA evidence, to the unrelated 1989 murder of Teresa Lynn Spaw Howell. Wilmer had died in 2017.^[7]

Cassandra Hailey and Richard Call

On April 10, 1988, Christopher Newport University students Cassandra Lee Hailey (18) and Richard Keith Call (20) were reported missing. Hailey left her family's residence in Grafton the previous day when Call picked her up for their first date. The couple travelled in Call's red 1982 Toyota Celica. They were last seen attending a party in the University Square area in Newport News at 1:30 a.m. on April 10. Neither of them has been seen since.

Call's unoccupied vehicle was found at the York River Overlook in Yorktown on the day of the disappearance. The keys were on the driver's seat, and a watch and eyeglasses were left on the dashboard. Nearly all of the clothing Call was wearing, including his underwear, was also found in the back of the car, as were some of Hailey's. Police later confirmed that it was the same clothing the couple had worn the night they disappeared. Bailey's purse and Call's wallet, however, were missing. Police dogs tracked the two students’ scent to the York River shoreline. Authorities initially believed they had gone swimming and drowned, but an extensive search of the river turned up no sign of them. Foul play is suspected.

Annamaria Phelps and Daniel Lauer

On September 5, 1989, Annamaria Phelps (18) and her boyfriend's brother, Daniel Lauer (21), vanished en route to Virginia Beach. Lauer's car, a gold 1972 Chevrolet Nova, was later found abandoned at the Interstate 64 rest stop in New Kent County. It is unclear whether Phelps and Lauer were killed at the rest stop or elsewhere. Both the driver and passenger side doors were unlocked, with the keys still in the ignition. Police found dirt and grass stains on the vehicle’s underside, suggesting the car recently been driven through the woods. Phelps' purse was found inside the car, once more ruling out robbery as a motive.

On October 19, the skeletonized bodies of Phelps and Lauer were found in a wooded area by hunters along Interstate 64 between Williamsburg and Richmond. They were covered in an electric blanket from Lauer’s car and were badly decomposed, which made it impossible to determine either the cause of death or whether there had been a sexual assault. The hunters discovered the bodies on a logging road about a quarter-of-a-mile from Courthouse Road, a location about a mile from the rest stop where Lauer's car was found. Even though the cause of death could not be determined, there were what appeared to be stab marks on Phelps' bones and abdomen.^{[citation needed]}

In 2010, a note was discovered in a box taken years earlier from Phelps' apartment. The note, which was undated and purportedly written by Phelps, indicated that she was to meet someone in a blue van at a rest stop.^[8] While the Virginia State Police claim the information in this note was previously examined, one of the original investigators told a television reporter from WAVY-TV that he was "unaware of the existence of the note".^{[citation needed]}

Mike Margaret and Donna Hall

On August 21, 1984, the bodies of Michael Sturgis “Mike” Margaret (21) and Donna Lynn Hall (18) were found in a wooded area approximately 300 yards southwest of the Kings Crossing Apartment Complex in Henrico. Margaret and Hall had been dating for four years and were engaged to be married. On August 17, the couple had told their respective families they planned to go on a camping trip together. This was the last time they were seen alive.^[9]

Three days later, a retired dentist walking his dog discovered Margaret’s Jeep backed into a depression off the trail with the passenger door open, keys in the ignition and ashtray open. One red bandana was hanging from the rear-view mirror, and another loosely tied around the clutch. The canvas top of the jeep had been rolled up and pinned back even though it had rained over the weekend. Inside the back end there were two suitcases and a paper bag filled with clothes. A trail of blood led to the bodies of Hall and Margaret underneath a checkered red and blue blanket about twenty feet away.^[10]

Both victims had been stabbed and their throats slit. The state coroner stated they died at 2:00 a.m. on August 18, only hours after they were last seen. Both had the sedative Demerol in their systems. Hall’s body was found without shoes, no defensive wounds and clutching pine needles leading investigators to believe that she and Margaret were actually killed where their bodies were found. Mike also had defensive wounds and a comparatively lower dosage of Demerol in his system. Some detectives believe that Hall and Margaret were the first victims of the Colonial Parkway Killer due to similarities in modus operandi.^[11]

Brian Pettinger and Laurie Powell

Brian Craig Pettinger, 25, a heavy equipment operator, was last seen at a Hampton, Virginia dance club on December 4, 1987, at 11:30 p.m. Two months later on February 3, 1988, Pettinger’s body was found by fishermen floating in a marshy area of the James River in Suffolk, Virginia near the mouth of the Chuckatuck Creek that flows into the James River. He was floating with his wrists and ankles tied, and a rope around his neck. The lead investigator in the case believed that Pettinger had likely been hog-tied. The autopsy showed that Pettinger had blunt force blows to the back of the head. He had also been thrown in the river alive, and then drowned. Pettinger's murder remains unsolved and occurred during and around the area where the Colonial Parkway murders took place. Pettinger also worked as a security guard and loss prevention officer for the same security services company where Colonial Parkway victim Robin Edwards' mother, Bonnie Edwards, worked as a receptionist at the time of Robin's murder.^[12]

Laurie Ann Powell Compton, 18, a Gloucester High School graduate, went missing on March 8, 1988, after having an argument with her boyfriend which ended with Laurie getting out of his car. She was last seen by him at 23:30 p.m. walking on the “dark and deserted” Route 614 towards Route 17 in the White Marsh area in Gloucester County. She was wearing a purple pullover, cotton shirt with a white collar, purple and cream coloured pants, and a dungaree jacket. Laurie was not scheduled to be at work on March 9 and her family assumed she was staying with a friend. When she did not turn up for work on March 10 her stepfather reported her missing. On Saturday April 2, 1988, Laurie’s body was spotted floating in the James River off Craney Island near Ragged Island. Her body was found nude, no bindings, and with multiple stab wounds to her back. Her death certificate stated ‘unknown’ for date and place of injury. Compton worked for the same security company where Pettinger and Edwards' mother worked at the time of her murder.

Shenandoah National Park killings

The bodies of Julianne Marie Williams, 24, and Laura Salisbury Winans, 26, were found by Park Rangers at the Shenandoah National Park on June 1, 1996, after Lollie’s golden retriever Taj was located wandering near the Whiteoak Canyon Trail. The two young women were in a relationship, and on May 19, 1996, went on a camping trip in Shenandoah National Park in Virginia. Julianne and Laura were last seen alive on May 24 in the park. On May 31, their families reported them missing. Their bodies were found at a remote campsite in the park about a quarter-mile from Skyline Drive off the Appalachian Trail. Laura was found inside the tent. Julianne was found in her sleeping bag about forty feet away, down an embankment. Their hands were bound, their mouths were gagged, and their throats were slit. Both were partially undressed, but neither was sexually assaulted.

The FBI investigated whether Julianne and Laura's murders were related to the 1986 Colonial Parkway murders of Cathleen Thomas and Rebecca Ann Dowski. In that case, the victims were similarly bound and stabbed. They had also not been sexually molested. Both double murders occurred on National Park property - the historic Colonial Parkway and the Shenandoah - which were connected by Interstate 64.^[13][14] Detective Steve Spingola who was asked to investigate the Colonial Parkway murders as a private investigator believed that the murders of Cathy and Rebecca were not related to the other Colonial Parkway murders at all and were, instead, connected Williams and Winans’ murders.