Recommended reading - The Onion Field, by Joseph Wambaugh (1973):

The Onion Field

By Joseph Wambaugh

Published 1973.

ISBN-10: 0385341598

ISBN-13: 978-0385341592

Description:

This is the frighteningly true story of two young cops and two young robbers whose separate destinies fatally cross one March night in a bizarre execution in a deserted Los Angeles field.

Joseph Wambaugh. A former LAPD detective and perennial bestselling author, he is the cops’ poet laureate, and this is the true story he was born to tell.

“A distinguished ‘factual novel.’ A fascinating account of a double tragedy: one physical, the other psychological.”

– Truman Capote.