A simulated Canadair Regional Jet flight deck at Embry-Riddle Aeronautical University in Daytona Beach, Fla. Robert Benincasa/NPR hide caption

itoggle caption Robert Benincasa/NPR

Frank Morris (in the apron and visor) is seen standing in front of his shoe shop in Ferriday, La., in the 1950s. He was killed when the shop burned down in 1964. Until now, the case has gone unsolved. Courtesy of the Concordia Sentinel and William Brown hide caption

itoggle caption Courtesy of the Concordia Sentinel and William Brown

A forensic pathologist prepares for an autopsy at The New Mexico Office of the Medical Investigator. John W. Poole/NPR hide caption

itoggle caption John W. Poole/NPR

Donna and Joe Turner have been fighting for 10 years to find answers to how their daughter, Chanda, died. Bryan Terry for NPR hide caption

itoggle caption Bryan Terry for NPR

Television shows like CSI provide an unrealistic view of the technology available to death investigators. In this photo from a recent episode of CSI:NY, characters Det. Josephine "Jo" Danville (Sela Ward) confers with Dr. Sheldon Hawkes (Hill Harper) and Dr. Sid Hammerback (Robert Joy) in their lab. Sonja Flemming/CBS hide caption

itoggle caption Sonja Flemming/CBS