LEONARDTOWN, Md. — State’s Attorney Jaymi Sterling announced that Marvin Orlando Johnson, 39, of Mechanicsville, Maryland, received a life sentence plus an additional 20 years in prison for the premeditated murder of his stepfather, William Joseph Taylor, on May 24, 2023. The sentencing, handed down by Judge Amy Lorenzini, followed a four-day jury trial in July 2024, where a St. Mary’s County jury convicted Johnson of first-degree murder and use of a firearm in a crime of violence.
The case began on May 24, 2023, when St. Mary’s County Sheriff’s Office deputies responded to a residence on Three Notch Road in Mechanicsville after a report of a male suffering a gunshot wound to the head. Deputies found Taylor, 67, deceased, with injuries consistent with a shotgun blast. Johnson and a second suspect, Taylor Marie Conference, 23, also of Mechanicsville, were arrested that day and charged with murder and related firearm offenses. Conference’s case remains separate, with no sentencing details yet released.
During the trial, evidence showed Johnson shot Taylor, his stepfather, in a premeditated act. Special Assistant State’s Attorney Jeff Maylor, from the Gun Violence Enforcement Division of the Baltimore City State’s Attorney’s Office, and Assistant State’s Attorney Zach Varda presented the case. Detective Andrew Burgess led the investigation, which included witness statements and forensic analysis tying Johnson to the crime scene. The jury deliberated for less than two hours on July 12, 2024, before returning guilty verdicts on both counts.
At sentencing, the state sought the maximum penalty of life plus 20 years, citing the severity of the crime. The defense argued for a sentence below the guidelines, which range from life to life for first-degree murder, but Lorenzini sided with the prosecution. Johnson received life for first-degree murder and a consecutive 20-year term for the firearm charge, ensuring he remains incarcerated without parole eligibility for at least two decades beyond a life term.
“This sentence reflects the gravity of taking a life in such a calculated manner,” Sterling said in a statement following the sentencing. Maryland law defines first-degree murder as a deliberate, premeditated killing, carrying a maximum of life without parole (source: Maryland Courts, courts.state.md.us). The additional firearm charge underscores efforts to address gun violence, a priority for Sterling’s office.
