Leesburg Police arrested and charged 19-year-old Gregory Keon Coates with armed robbery on Aug. 5 based on Shaw's sketches and other evidence. (Courtesy of Capt. Thom Shaw/Loudoun County Sheriff's Office)


A gun, medication and other items were taken at an open house in March 2008. A real estate agent described a woman who had attended the event. Detectives tracked her down based on the sketch, and police say she confessed to this and other incidents where she posed as a potential homebuyer to steal items. (Courtesy of Capt. Thom Shaw/Loudoun County Sheriff's Office)


A woman had described a man she saw fleeing her home after a burglary in August 2012. A man who had been arrested for other burglaries saw Shaw's sketch, smiled and admitted it was him. He was charged with the August 2012 burglary and others. He asked for a copy of Shaw's sketch. (Courtesy of Capt. Thom Shaw/Loudoun County Sheriff's Office)


Streed developed this sketch after a kidnapping case in California where the witnesses were 8 and 10 years old. The alleged kidnapper was caught after he killed a family in Idaho. He was connected to cases in California because of the sketch. (Courtesy of Michael Streed/Baltimore police)


A composite sketch by Michael Streed, a former forensic artist in California who is now a police artist working for Baltimore police. This sketch and photo is of a man arrested this year for his alleged connection in a Baltimore homicide case. (Courtesy of Michael Streed/Baltimore police)


This sketch and photo is of a man arrested this year for his alleged connection to a Baltimore homicide case. (Prince George's County Police)