John M. Gilroy (born June 24, 1959) is an American film editor whose work includes Michael Clayton, The Bourne Legacy, Warrior, Pacific Rim, Nightcrawler, and Suicide Squad. Gilroy was born in 1959 in Santa Monica, California. He is the son of Ruth Dorothy (Gaydos), a sculptor and writer, and Frank D. Gilroy, a filmmaker. He is the twin brother of screenwriter-director Dan Gilroy and the brother of screenwriter-director Tony Gilroy. He has a daughter, Carolyn, born in 1990. John did not origin ...