SOUTH SALT LAKE (KSL) — Investigators believe a South Salt Lake man who disappeared in 2022 is likely dead, but they’re still trying to figure out what happened to him more than three years later.

“To my knowledge we don’t have one working theory as to whether it’s a homicide or a suicide or if he just completely went off the grid, essentially,” officer Shaun Ward said Monday.

But according to a recent search warrant affidavit filed in 3rd District Court, “There has been no financial or digital footprint indicating that (Cornelis ‘Casey’ Frederik Bokslag) is still alive. It is presumed he is deceased.”

Ward says the search warrant, filed in late November, is to look at Bokslag’s Google accounts, such as his email history, internet search history and location data. Investigators are hoping those records “might provide additional information about where Bokslag had been in the days and hours leading up to his disappearance as well as any correspondence, contacts, locations and a slew of other sources of information that could lead Investigators to the location of Bokslag’s body, which will allow us to determine if his disappearance was a result of suicide or foul play,” the warrant states.

As of Monday, the request for that information from Google was still pending.

Ward, 30, was last seen on June 6, 2022. Police have recovered surveillance video of Bokslag leaving his apartment complex that day in his car by himself. He then went to an ATM in South Salt Lake and withdrew $100. Bokslag, a four-year Marine veteran who had worked for a watershed company since 2016, did not go to work that day, which family members, his employer and police said was highly unusual.

“Investigators eventually learned that Bokslag had taken the day off work and told friends and family that he was traveling to Evanston, Wyoming, to participate in the gay pride parade festivities,” according to the recently unsealed search warrant.

Hours after Bokslag was reported missing on June 8, 2022, his 2012 Suzuki SX4 was found by a passerby in Summit County, near the Castle Rock exit off I-80, about 18 miles west of the Wyoming border.

“It was discovered that the vehicle’s license plates were removed from the car. Meticulously, the screws were put back into the license plate frame, and the vehicle was essentially clean in nature,” police said at the time.

The warrant further states that “there was a noticeable absence of fingerprints inside the vehicle. This was determined to be consistent with the interior having been wiped clean.

“Later, DNA swabs were taken and submitted for testing. They revealed two genetic profiles. One was matched to Bokslag by exemplar samples provided by the family. A second profile was identified. The profile was checked through the Combined DNA Index System, and no positive identification was made,” the warrant states.

Ward said Monday that investigators have done extensive searches around where Bokslag’s car was found in 2022, both on the ground and by drone. His residence was also searched, and a few items of potential evidence, such as Bokslag’s laptop, were seized.

A co-worker called Bokslag several times one night before he disappeared, according to cellphone records collected by investigators. Several witnesses told police that the co-worker and Bokslag “were up for the same promotion, but Bokslag was eventually selected for it, causing resentment. Those cellphone records also showed Bokslag’s phone being turned off at some point on June 6,” according to the warrant.

“A records check revealed that shortly after receiving numerous calls in one night from the hostile co-worker, and prior to being reported missing, Bokslag purchased a handgun in Salt Lake County along with two boxes of ammunition,” the warrant says.

Ward did not have any additional information Monday about the co-worker, including whether police had questioned him or if he had been ruled out as a possible suspect.

A $50,000 reward is still being offered for information that leads to Bokslag being found. According to a web page set up by his family, Bokslag is 6 feet 2 inches tall, weighs about 140 pounds, has blond hair and gray eyes. He also had a goatee at the time of his disappearance. A missing persons poster is hanging in the lobby of the South Salt Lake Police Department with Bokslag’s information.

Anyone who has information on what may have happened to Bokslag or anyone who may have seen him is asked to call police at 801-840-4000. Ward says all tips will be investigated.

“Really, anything at this point. If they think that they saw him or have seen him recently, or if they have any information into his personal life that our investigators may not know … any information is welcome,” he said. “We want to bring closure to the family. The family still wants answers.”