Investigators say Johnathon Brown’s abrupt disappearance triggered a search that ended beneath a freshly poured slab at an Independence home.
INDEPENDENCE, Mo. — Johnathon Brown was known for staying in touch with family, friends and other people in his life, investigators say, making the 45-year-old Independence man’s sudden silence in May the first signal in a missing-person case that would eventually become a first-degree murder prosecution.
Brown was reported missing May 13, three days after his last known movements. What began as a search for a man who had abruptly stopped communicating developed into a homicide investigation built from surveillance video, witness interviews, cellphone-location records, cadaver dog alerts and property recovered during searches. Authorities ultimately found Brown’s remains beneath newly poured concrete in the basement of an Independence property. William Morrison, Brown’s business partner, has since been indicted on first-degree murder and armed criminal action charges. Morrison is presumed innocent unless proven guilty or he pleads guilty.
Police initially had competing information about where Brown might have gone. According to the probable cause statement, an associate involved with a motorcycle club told investigators he had heard Brown was in Springfield, Missouri. Detectives later concluded that the information had originated with Morrison. Officers also interviewed people close to Brown who described how regularly he communicated through phone calls, texts, social media and in-person visits. They considered it highly unusual for him to disappear from all of those channels at once. Brown’s mother told investigators his last communication with her had been a Mother’s Day message sent May 10.
The effort to reconstruct Brown’s final hours soon produced video evidence. Investigators located surveillance footage showing an older white sedan and Brown in its passenger seat late May 10. Court records say Brown had told someone that he was going with Morrison to perform concrete work. Additional footage showed Brown and another man leaving an excavation and demolition business shortly before midnight. Those images helped investigators narrow the period when Brown was last known to be alive and shifted attention toward a property where concrete work had been planned that night.
At the Independence residence, a woman told detectives that Morrison was the owner or landlord and that he and Brown had arrived during the evening to work in the basement. She described the job as involving holes and preparation for concrete. At some point, she left the basement after Morrison asked her to get food. When she later went back, Brown was no longer there. The resident told investigators Morrison said Brown had left with a woman she did not know. She said she never saw Brown again.
Investigators tested that explanation against another home’s surveillance system rather than relying on the account alone. The nearby camera recorded a white sedan arriving shortly before midnight and leaving at about 3:19 a.m. Only one other vehicle briefly approached during that stretch, according to the probable cause statement, and police said its behavior was consistent with the food delivery the resident had described. Investigators reported finding no video evidence supporting the claim that another woman arrived and drove Brown away from the residence.
Brown’s cellphone records provided a second independent timeline. Historical location information showed his device remaining in the area of the Independence home from shortly after midnight until about 3:18 a.m. on May 11, close to the time the white sedan departed. Detectives viewed that as inconsistent with the claim that Brown had left earlier. The phone then moved to an area associated with one of Morrison’s businesses and later traveled south through the Kansas City region before moving east toward Urich, a small community southeast of the metro area.
By May 23, the investigation had returned physically to the basement. Detectives searched the property with human-remains detection dogs working with emergency-response personnel. Both dogs alerted independently near a recently poured concrete slab, including a corner of the slab and a nearby dirt pile. Police excavated the concrete and found the remains of a man. Authorities later identified the remains as Brown. The medical examiner ruled his death a homicide and found that he had been shot once in the head. Public records do not identify a firearm recovered as the murder weapon or establish who fired the shot.
Evidence found elsewhere in Morrison’s residence drew further attention. One of his employees told detectives that Morrison had called him from the Jackson County Jail and directed him to money in the home. The employee said Morrison also told him to deal with something near an air duct. When the employee checked, he found a leather wallet containing Brown’s identification, according to the probable cause statement. He left the wallet in place and notified investigators. Detectives then obtained a warrant and recovered the wallet from the residence.
Meanwhile, detectives continued following Brown’s missing cellphone. Records showed the device traveling to Urich before its connection ended. Investigators reviewed video at a Casey’s store near the last known signal and identified a truck they believed was traveling with the phone. Video showed a woman leaving the truck and walking near an outside trash can. Police later identified her as an employee of Morrison. During questioning in June, she told investigators Morrison had given her two phones and instructed her to dispose of them on a trip toward Springfield, according to the court filing.
The woman told police she did not complete that trip. Instead, she said, she stopped in Urich, discarded a phone case and later threw the phones into a field. She accompanied detectives back to an area where she said the devices had been left, but police did not locate them. Investigators included her account in the probable cause statement as part of the evidence they said supported seeking murder charges. The filing does not accuse her of participating in Brown’s killing, and the publicly available case materials do not establish that she knew how Brown had died when she handled the phones.
Police also learned that Brown and Morrison had business and financial ties. Witnesses described continuing dealings involving business ventures and money and said Morrison exercised influence over aspects of Brown’s finances, housing and work. Investigators documented those claims but did not identify a proven motive for the homicide. The distinction is important: the charging record describes the relationship as context for the investigation, while the state’s accusation of first-degree murder must still be established through the criminal court process.
Jackson County prosecutors announced the murder and armed criminal action charges Sept. 3. A grand jury subsequently indicted Morrison on the same charges Sept. 24, removing the need for a preliminary hearing and allowing the prosecution to proceed toward trial. Court reporting listed Morrison as being held without bond and scheduled him for an arraignment at 9:30 a.m. Oct. 20.
Nearly five months after Brown was reported missing, the case has therefore moved from a search for his whereabouts to a pending murder prosecution. Morrison has not been convicted of the charges, no trial date has been publicly reported, and a motive remains unproven. His next reported court proceeding is the Oct. 20 arraignment in Jackson County.
Author note: Last updated October 19, 2026.