"This bridge up ahead had a sign on it when you came out in this direction...it said, 'You are now entering the cruel world,'" federal agent Don Ferrarone pointed out as he drove along Interstate 45 with "48 Hours Mystery" correspondent Erin Moriarty. "And it's just, you know, it's just a perfect place [for] killing somebody and getting away with it."
Screenwriter Donald Ferrarone, director Ami Canaan Mann and producer attend the 'Texas Killing Fields' Photocall at Palazzo del Casino on September 9, 2011 in Venice, Italy.
Real life Texas City cops Brian Goetschius and Mike Land are the basis for detectives Souder and Heigh, while "Little" Anne Sliger (Chloe Grace Moretz) is a composite of young girls screenwriter Don Ferrarone met and read about. The movie doesn't purport to solve the mystery of the I-45 murders, but is an admitted hybrid of several local cases. Having said that...