A member of the Pagan’s Motorcycle Club has pleaded guilty to assaulting a rival motorcycle club member in North Kansas City, Missouri. Mark A. Crump, also known as “Navajo,” age 55 and from Lee’s Summit, entered his plea before U.S. District Judge Greg Kays to one count of assault resulting in serious bodily injury in aid of racketeering.
According to court documents, on July 20, 2023, Crump and two other members of the Pagan’s attacked a lone member of a rival motorcycle gang at a bar and grill. One participant, Jarrid A. Hammer, told the victim they were there to shut down the victim’s club before flipping a table that knocked the victim to the ground. The three then stomped, kicked, and punched the victim while he was on the floor. The victim later reported that his attackers wore steel-toed boots.
Crump and his associates left before law enforcement arrived. The injured man was transported by ambulance to a local hospital with injuries including a brain contusion, rib fracture, hemothorax (blood accumulation between chest wall and lungs), pulmonary contusion (lung bruising), pneumothorax (collapsed lung), and traumatic brain injury.
Hammer previously pleaded guilty on June 18, 2025, for his role in the attack and is awaiting sentencing.
Under federal law, Crump faces up to 20 years in prison without parole; however, sentencing will be determined by the court after consideration of advisory guidelines and statutory factors following an investigation by the United States Probation Office.
Assistant U.S. Attorneys Bradley K. Kavanaugh and Robert Smith are prosecuting this case. The FBI led the investigation with assistance from local police departments in Independence, Blue Springs, Kansas City as well as Homeland Security Investigations.
This prosecution is part of an Organized Crime Drug Enforcement Task Forces (OCDETF) operation aimed at disrupting high-level criminal organizations through coordinated efforts among multiple agencies. More information about OCDETF can be found at https://www.justice.gov/OCDETF.
