Investigations

An evening view of the Exxon Mobil oil refinery complex in Baton Rouge, La. John W. Poole/NPR hide caption

The Houston Ship Channel is home to a wide range of heavy industry, including chemical processing plants and petrochemical refineries. Richard Harris/NPR hide caption

Frank Morris (in the apron and visor) stands in front of his shoe shop in Ferriday, La., in the 1950s. He was killed when his shop burned down in 1964. Courtesy of the Concordia Sentinel and William Brown hide caption

Jasper Burchfield was a 36-year-old part-time constable when he shot and killed Queen in 1965. Joseph Shapiro/NPR hide caption

Will Piper and Annette Pacas visit the grave of Annette's son, Alex, at Oak Hill Cemetery in Mount Carroll, Ill. Piper says he hopes to raise money to replace the makeshift, plastic marker with a permanent gravestone. John W. Poole/NPR hide caption