206 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description
Any updates on this case? Let us know!
Mark Anthony Green, aged 56, tragically passed away on March 19, 2015, in Knoxville, Maryland. His death was the result of a gunshot wound, inflicted during a double homicide-suicide orchestrated by his father, Johnnie Richard Green. Mark, who had an intellectual disability, was known for his love of cycling and was often seen riding his bicycle around the neighborhood.

On the day of the incident, Johnnie Green, aged 86, shot both Mark and his wife, Mary Green, before taking his own life. ...Read More
Victim Details

Mark Green

Male

Knoxville

MD

2015-03-19

56

Mark

Green

11/24/2025