Cop Killer Nailed After 30 Years

Man in orange prison uniform behind jail bars

After 30 years of freedom, a suspect who changed his identity now faces murder charges for killing a D.C. police officer whose service weapon remains mysteriously missing, proving that justice may be delayed, but it won’t be denied.

Story Highlights

Kenneth Wonsom, now calling himself Amir Jalil Ali, was arrested for the 1995 murder of Officer Denna Campbell.
Campbell’s department-issued handgun disappeared and has never been recovered after her death.
The suspect was initially charged in 1995 but released, then changed his name in 2021.
A cold case breakthrough came through DNA analysis and renewed witness interviews.

Cold Case Breakthrough After Three Decades

Montgomery County Police arrested Amir Jalil Ali on August 5, 2025, charging him with first-degree murder in the 1995 killing of Metropolitan Police Officer Denna Campbell. Ali, formerly known as Kenneth Burnell Wonsom, was Campbell’s boyfriend when she was found shot five times in her White Oak, Maryland apartment. The arrest represents a significant breakthrough in a case that has haunted law enforcement for nearly three decades, demonstrating that persistent investigation and advancing forensic technology can overcome even the most challenging cold cases.

Missing Service Weapon Adds Disturbing Element

Campbell’s department-issued handgun vanished from the crime scene and remains missing today, creating an ongoing security concern for law enforcement. The 24-year-old officer, a four-year veteran of the Metropolitan Police Department, was discovered by Wonsom himself in September 1995. This missing weapon represents more than evidence—it symbolizes the vulnerability of our law enforcement officers and raises serious questions about whether dangerous criminals have access to police firearms. The weapon’s disappearance has complicated the investigation for three decades and continues to concern authorities.

Suspect’s Identity Change Raises Red Flags

Wonsom’s decision to legally change his name to Amir Jalil Ali in 2021 raises obvious questions about his motivations and state of mind decades after Campbell’s murder. While name changes are legal, the timing appears suspicious given the ongoing investigation into his former girlfriend’s death. This pattern of attempting to distance oneself from past associations often indicates consciousness of guilt. The name change occurred just four years before his eventual arrest, suggesting he may have sensed renewed investigative pressure.

Justice Delayed But Not Denied

The arrest validates the dedication of Montgomery County’s Major Crimes Division and demonstrates why cold case units deserve robust funding and support. DNA analysis and fresh witness interviews led to the breakthrough that finally brought charges against Ali. Montgomery County Police Chief Marc Yamada praised detective persistence, while D.C. Police Chief Pamela Smith emphasized the significance for Campbell’s family and the department. This case proves that criminals cannot simply wait out justice, and advancing technology continues to solve cases that once seemed impossible.