Update 8/11/21 – Police have arrested a suspect for the murder of Arnold-Boesigner, whose body was found inside a unit rented in her name in March. Jonathan Vanduyn, 33, has been charged with first-degree murder and faces the additional charge of concealment of a homicidal death, according to a source.
Police discovered the body inside a black Jeep Renegade registered to Vanduyn, which was stored inside the unit. The cause of death was either homicide by asphyxiation, accidental from the ingestion of drugs or a combination of the two, according to the medical examiner.
Arnold-Boesigner and Vanduyn were involved in a romantic relationship with a history of abuse, a source reported. Investigators believe she was likely killed on or about Nov. 15, when cell records show the couple near the U-Haul facility. Her passcode was used to enter the property at 11:10 a.m. and again later, after her debit card has been used at a nearby Home Depot to purchase heavy-duty garbage bags, duct tape and odor-eliminating products.
Arnold-Boesigner’s pickup truck was captured on camera the same day, with Vanduyn driving. Over the next several weeks, Vanduyn reportedly used her debit card, and her cell phone was shown as active and near Vanduyn’s mobile device.
In December, Vanduyn used Arnold-Boesiger’s pickup to abduct his own daughter and drive her from Wisconsin to Indiana. When police apprehended him for this crime, they discovered items belonging to Arnold-Boesiger inside the vehicle. That evidence led them to the storage unit where her body was found.
3/5/21 – The body of a 33-year-old woman was discovered on Tuesday inside a self-storage unit at a U-Haul facility in Roscoe, Ill. The McHenry County Sheriff’s Office obtained a probable-cause warrant to search the property, where investigators found Michelle Arnold-Boesigner. A resident of Harvard, Ill., she was reported missing on Jan. 3 to the Holiday Hills Police Department, according to a source.
At least six police vehicles responded to the scene on March 2. Arnold-Boesigner was identified on Thursday. No additional details have been reported, including whether police suspect foul play. Investigators indicated there isn’t any threat to the community, sources reported.
The Roscoe Police Department and Winnebago County Sheriff’s Office are also assisting in the ongoing investigation.
Established in 1945, Phoenix-based U-Haul International Inc. owns or manages more than 1,200 self-storage facilities across North America. Its portfolio comprises more than 68 million square feet.
Sources:
MyStateline.com, Body Found at Roscoe U-Haul Storage Facility
MyStateline.com, Body Found in Roscoe U-Haul Facility Identified as Harvard Woman
WIFR, Death Investigation Underway in Roscoe
WIFR, Wis. Man Charged for Murder of Michelle Arnold-Boesiger, Abducted Own Daughter
