Lynn “Buck” Compton, an Army paratrooper whose World War II service was portrayed in the book and HBO miniseries “Band of Brothers” and who later as a prosecutor secured a conviction of Robert F. Kennedy assassin Sirhan Sirhan, died Feb. 26 at his home in Burlington, Wash. He was 90.

He had complications from a heart attack, said his daughter Syndee Compton. Compton retired in 1990 as a judge on the California Courts of Appeal.

Compton fought in some of the war’s fiercest battles as a first lieutenant with E Company, 2nd Battalion, 506th Parachute Infantry Regiment, 101st Airborne Division. The soldiers, collectively known as Easy Company, participated in the June 6, 1944, invasion of Normandy, parachuted into Holland for the disastrous Operation Market Garden, and fought through frostbite and German artillery in the Battle of the Bulge.

At 6 feet, 220 pounds, he had been a two-sport varsity athlete for the University of California at Los Angeles before he became an Army officer in 1943. He was a catcher alongside future major leaguer Jackie Robinson and played guard on the Bruins’ line in the 1943 Rose Bowl.

For his war service, Compton received the Silver Star and the Purple Heart.

In the 2001 Emmy Award-winning HBO miniseries, Compton’s character is played by Neal McDonough.

Lynn Davis Compton was born Dec. 31, 1921, in Los Angeles. Survivors include two children from his second marriage, Syndee Compton and Tracy Compton, both of Burlington; and four grandchildren.