"The Overlooked Suspect" is based on the book, O.J. is Guilty, But Not of Murder by writer and private investigator William Dear. Published in 2000, the book is the result of a six-year investigation by Dear and asserts that Jason Simpson committed the murders of Brown Simpson and Ronald Goldman.
Here's a bit from Chapter One of Dear's book:
“Never assume. Always verify.” Every detective, public defender and investigative reporter should have those four words tattooed in black ink on their foreheads. Then every time they looked at themselves in the mirror they would be reminded of the great responsibility they have to themselves and to the public to check their facts before jumping to conclusions. Lives are on the line–and not only those of the falsely accused.
Take a peak at "The Overlooked Suspect," directed by Phil Smith, starring William Dear: