Alan Brice Nielsen, a 51-year-old man from Kelso, Washington, was shot and killed on July 15, 2022, following a dispute. Weeks later, on July 30, deputies executed a search warrant at a property on the 2100 block of Holcomb Road in Kelso and found Nielsen’s remains scattered in and around a truck; investigators say the body had been destroyed by a deliberate explosion that also damaged the vehicle.

Investigators identified and arrested three suspects. In late October 2022, 52-year-old Jethro Nichols Welter was arrested; detectives believe he shot Nielsen on July 15 and then used about 60 pounds of explosives, purchased between July 17 and 19, to destroy the body. A search of Welter’s property reportedly turned up multiple firearms, a stolen gun, and suspected methamphetamine. In November 2022, 47-year-old Jerome Adrian Markert of Kelso was arrested as another participant; his motive is reported to have been suspicion that Nielsen was responsible for the deaths of Markert’s dogs. A third man, Carlos Chavez Velazco, left Washington after the killing and was located and arrested at a Los Angeles homeless shelter in June 2023 and extradited to Cowlitz County to face charges including first-degree murder.

Does anyone have information about Nielsen’s activities in Kelso in July 2022 or about the Holcomb Road property that could help fill gaps in the timeline?