Sentencing was handed down Tuesday to an Oak Park man who murdered a DoorDash delivery driver last year.
At a hearing in Oakland County Circuit Court, Judge Jacob Cunningham ordered Terrell Simms, 39, to spend 37.5 – 80 years in prison for the fatal shooting of Mamadou Diallo, 26. Diallo was a Senegalese living in Detroit and working as a DoorDasher when he was killed on March 9, 2025 in Ferndale while on the job.
Ferndale Police Dept.
Terrell Simms booking photo
According to investigators, his death resulted from a reported road rage incident on Woodward Avenue that escalated. Diallo had just picked up an order at a White Castle restaurant when he encountered a speeding vehicle driving erratically which almost hit him. The driver, later identified as Simms, waited for Diallo at a traffic light and then opened fire, investigators said. Diallo was struck in the torso and died at an area hospital.
Mamadou Diallo was fatally shot while working as a DoorDash driver. (photo shared by Ferndale Police Dept.)
Simms was convicted at the conclusion of a jury trial last October. Along with the homicide charge, he was found guilty of possession of a firearm by a prohibited person, carrying a concealed weapon and three counts of felony firearm. The felony firearm convictions added a mandatory two years onto his sentence while the penalties for the other crimes — 76 months-30 years — are to be served concurrently. Jail credit of 294 days was acknowledged.
Diallo’s vehicle was fired on six times, police said. (Ferndale Police Dept.)
Simms was also told to pay restitution of $7,519 to the African Bureau for Immigration and Social Affairs,
Simms received an enhanced sentence as an habitual offender. His criminal history in Oakland County includes convictions for stealing financial transaction devices — such as credit cards or bank cards — probation violation and firearms-related offenses.
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