A writer was able to follow Prince George's County homicide investigators' every move for months -- and what he saw may shed new light on the 2012 killing of high school student Amber Stanley.
Del Quentin Wilber, a former reporter for The Washington Post, shadowed detectives for six months in 2013. He focused on the month of February.
"Not only were they getting slammed with homicides and police shootings, but they had a red-ball [high-profile] murder that they were trying to solve, of Amber Stanley," he said.
Stanley, an honors student who aspired to become a doctor, was found shot and killed in her bed in Kettering, Maryland, on Aug. 22, 2012. Her death was the first of six fatal shootings involving high school students in a six-month period.
As Wilber tells in the book, "A Good Month for Murder: The Inside Story of a Homicide Squad," he was with detectives as they uncovered more about the killing.
"He was in there during the time when we got the new information ... on the DNA evidence in this case," Capt. Brian Reilly said.
DNA evidence pointed in a direction connected to Stanley's foster sister, police said.
"She has a foster sister that was assaulted a couple days prior to Amber’s murder," Reilly said. "We know this person was involved in that assault, so it’s just someone we’re looking at to see where he was at the time of the murder and if he has any involvement."
The investigation into Stanley's murder is active. Police were unable to say when they will be able to file charges in the case.