Aaron Hernandez's Attorney Is Writing A Book About The Former Patriot's Life

The defense attorney for the late Aaron Hernandez is writing a book about the former NFL star and promises "shocking revelations."

Jose Baez's "Unnecessary Roughness: The Life and Death of Aaron Hernandez" is coming out Aug. 21, Hachette Books told The Associated Press on Tuesday. The book was written with the cooperation of Hernandez's fiancee, Shayanna Jenkins, and will include a foreword by her. According to Hachette, "Unnecessary Roughness" will be the "definitive, insider" story on Hernandez.

Hernandez, a former standout tight end for the New England Patriots, was found hanging in his cell last April 19, hours before his ex-teammates were due to visit the White House to celebrate their Super Bowl victory. The 27-year-old athlete had been serving life without parole for a 2013 murder.

Hernandez's family donated his brain to the Boston University CTE Center. Researchers there said his brain revealed the most extensive evidence of chronic traumatic encephalopathy (CTE) they've ever seen in a person that young.

CTE is a degenerative brain disease found in people with a history of repetitive head trauma, and which can currently be diagnosed only during an autopsy.