A Delaware County driver who rocketed down West Chester Pike at highway speeds before a deadly collision is heading to state prison for up to a decade, after a judge sentenced him Friday for a crash that killed a Philadelphia man last summer.
The July 14, 2025, wreck left Marcellinus Madu dead. His fiancée later told the court the couple had welcomed a child just days before the crash. Prosecutors said their case leaned heavily on technical data that captured both the extreme speed involved and signs of impairment behind the wheel.
Sentence and court orders
According to Delco Times, Judge Stephanie Klein on June 26 handed Terrence Weh a 5.25- to 10.5-year state prison term and ordered him to provide a DNA sample to state police. The court credited him for time served from Sept. 5, 2025, through June 26, 2026, and noted that he is eligible for a state drug-treatment program that could shorten his time behind bars.
Crash evidence and toxicology
Investigators say Weh's 2015 BMW slammed into a 2017 Mitsubishi as the Mitsubishi's driver, Madu, turned into Dunwoody Village, leaving Madu trapped in the vehicle and later pronounced dead, as first reported by Patch. Data pulled from the BMW's airbag control module showed an impact speed of about 97 mph and a peak reading of 111 mph just two seconds before the crash. Authorities said Weh's blood contained THC at levels that would have impaired his ability to drive. The posted speed limit on that stretch of West Chester Pike is 40 mph, officials noted.
Family and pleas
Weh entered guilty pleas on March 16 to homicide by vehicle while driving under the influence, DUI and reckless endangerment. Madu's fiancée, Mavinty Koroma, told the court the couple's son, Desmond, was born two days before the crash and is now about 11 months old, according to Delco Times. Prosecutors said that emotional testimony, backed by the technical evidence from the crash investigation, supported their push for a substantial sentence.
What comes next
With the sentence in place, any post-sentencing motions or appeals would move through Delaware County Common Pleas. If none are filed or successful, Weh will serve the balance of his term at a state correctional facility. Local safety advocates say the case is a stark reminder of what can happen on busy suburban arteries when high speed and impairment collide.
