On December 12, 2025 Jason Calhum and Khalil Dixon were convicted of multiple charges including Murder First Degree in New Castle County Superior Court in connection with the killing of Shiheem Durham.   

Jason Calhum, 24, of Middletown, Delaware was convicted of Murder First Degree, Possession of a Firearm During the Commission of a Felony, Conspiracy First Degree, Money Laundering, Gang Participation, and three counts of Conspiracy Second Degree.  

Khalil Dixon, 29, of Dover, Delaware was convicted of Murder First Degree, Conspiracy First Degree, Money Laundering, Conspiracy Second Degree, and Criminal Solicitation First Degree. Both Calhum and Dixon were previously convicted of the same charges in May 2022; due to a juror issue their original convictions were overturned in February 2025, prompting a retrial.  

“I’m grateful to the team of prosecutors and Wilmington police who gave this their all,” said Attorney General Kathy Jennings. “Gang prosecutions are by their nature complicated and multifaceted—but the trial team and law enforcement have been dogged in their pursuit of justice for more than four years. MGS and gangs like it have done unspeakable damage to our communities. Closure is more elusive than justice, and we cannot fully heal the harm they have caused—but we can and will hold them accountable.”  

In January 2020, Khalil Dixon put a bounty out on three individuals, including Shiheem Durham.  Jason Calhum and other members/affiliates of MGS conspired to carry out the murder-for-hire. On February 25, 2020, they traveled from Wilmington to Dover together and Calhum lured one of the targets of the bounty to a meeting for a purported drug deal.  When the victim’s vehicle arrived, Calhum fired a single shot into the vehicle, missing the driver and striking Durham in the front passenger seat. Following the murder, Dixon made several payments for the bounty. Also affiliated with this case, co-defendant Deonte Robinson was tried and convicted in October 2023.    

The State’s case against MGS (“M-Block Grimy Savages”) began in September 2019 as an effort to address gang violence in Wilmington through a newly formed Task Force, which consisted of personnel from the Delaware Department of Justice, U.S. Department of Justice, Wilmington Police Department, the ATF, and the FBI.  Traces on crime guns recovered in and around Wilmington helped the Task Force identify MGS as a major driver of violence in Wilmington.  

The ensuing investigation identified 19 defendants — 17 adults and 2 juveniles — involved with MGS or aligned gangs and numerous violent felonies, as well as a non-MGS member who contracted a Dover killing. The crimes included the killings of Shiheem Durham, Naithan Grzybowski, Tommier Dendy, and Eddie Green; a six-victim mass shooting at the intersection of 10th and Pine Streets in April 2019; six additional shooting cases; a robbery; and numerous gun offenses.  

In addition to Calhum and Dixon, the convictions were:  

• Tyrie Burton, 24, guilty of Conspiracy 1st Degree, Assault 1st Degree, two counts of Possession of a Firearm During the Commission of a Felony, two counts of Possession of a Firearm by a Person Prohibited, Gang Participation, and Violation of Probation  

• Davon Walker, 23, guilty of Murder 2nd Degree (Grzybowski), Murder 2nd Degree (Dendy), Murder 2nd Degree (Green), Gang Participation, and Conspiracy 1st Degree  

• Pierre Carter-Bailey, 23, guilty of Assault 1st Degree, and Possession of a Firearm During the Commission of a Felony  

• Deonta Carney, 23, guilty of Gang Participation  

• Zakier Smith, 24, guilty of Assault 2nd Degree, Possession of a Firearm During the Commission of a Felony, and Gang Participation  

• Lloyd Smith, 23, guilty of Possession of a Firearm During the Commission of a Felony, Concealed Carry of a Deadly Weapon, and Conspiracy 2nd Degree  

• Dahmere White, 26, guilty of Possession of a firearm by a Person Prohibited and Gang Participation  

• Marcell Dixon, 29, guilty of Concealed Carry of a Deadly Weapon, Gang Participation, and Violation of Probation  

• Jakeem Bush, 21, guilty of Gang Participation  

• Antonio Wright, 32, guilty of Providing a Firearm to a Person Prohibited, and Gang Participation.  

• Nathaniel Murray, 22, guilty of Possession of a Firearm by a Person Prohibited, Concealed Carry of a Deadly Weapon, and Gang Participation.  

• Jahmier Robinson-Handy, 21, guilty of Possession of a Firearm by a Person Prohibited and Concealed Carry of a Deadly Weapon.  

• Clarence Jarman, 22, guilty of Gang Participation.  

• Zyamese Mobley, 24, guilty of Gang Participation.  

• Darielle Oliver, 22, no contest to Hindering Prosecution  

• Two minors each guilty of Gang Participation. 

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