Murderers’ Row were the baseball teams of the New York Yankees in the late 1920s, widely considered one of the best teams in history.
 The nickname is in particular describing the first six hitters in the 1927 team lineup: Earle Combs, Mark Koenig, Babe Ruth, Lou Gehrig, Bob Meusel, and Tony Lazzeri.
Murderers' Row (sometimes spelled "Murderer's Row") is a 1966 American comedy spy-fi film starring Dean Martin.
 It is very loosely based upon the Matt Helm spy novel "Murderers' Row" by Donald Hamilton, which was published in 1962.
Graham Price MBE (born 24 November 1951 in Moascar, Egypt) is a former Welsh rugby union player, who was a member of the famous Pontypool RFC front row known as the "Viet Gwent".
 He won 41 caps for Wales , and a record 12 for the British and Irish Lions as a prop forward.
The 1927 New York Yankees season was their 25th season.
 The team finished with a record of 110–44, winning their fifth pennant and finishing 19 games ahead of the Philadelphia Athletics and were tied for first or better for the whole season.
 New York was managed by Miller Huggins.
 The Yankees played at Yankee Stadium.
 In the World Series, they swept the Pittsburgh Pirates.
 This Yankees team is known for their feared lineup, which was nicknamed "Murderers' Row".
 This team is widely considered to be the best baseball team in the history of MLB.
Bernard Oliver "Benny" Bengough (July 27, 1898 – December 22, 1968) was an American professional baseball player and coach.
 He played the majority of his Major League Baseball career as a catcher for the New York Yankees during the 1920s when the team garnered the nickname of Murderers' Row, due to their potent batting lineup.
 He played the final two seasons of his career with the St. Louis Browns.
 Bengough was a light-hitting, defensive specialist.
 After his playing career, he spent 18 seasons as a major league coach.
Murderers' Row refers to a group of middleweight boxing contenders in the United States competing in the 1940s and 1950s, primarily of an African-American background.
 Renowned for their toughness and great boxing ability, at the time they were feared throughout the boxing world and are categorised as being the most avoided fighters of their generation.
 According to boxing pundit Jim Murray, the Murderers’ Row were “the most exclusive men’s club the ring has ever known.
 They were so good and so feared that they had to have their own tournament”.
 The term ‘Black Murderers’ Row’ was coined by writer Budd Schulberg, screenwriter of 'On the Waterfront'.
Billionaires Row, Billionaires' Row, or Billionaire's Row is the nickname of several streets or neighborhoods throughout the world that have residences belonging to some of the world's richest people.
 Places known as Billionaires Row include:
Paul Bernard Krichell (December 19, 1882 – June 4, 1957) was a Major League Baseball catcher, best known for being the head scout for the New York Yankees for 37 years until his death.
 Krichell's talent evaluations and signings played a key role in building up the Yankees' run of success from the Murderers' Row teams of the 1920s to the 1950s teams led by Casey Stengel.
Robert William Meusel (July 19, 1896 – November 28, 1977) was an American baseball left and right fielder who played in Major League Baseball (MLB) for eleven seasons from 1920 through 1930, all but the last for the New York Yankees.
 He was best known as a member of the Yankees' championship teams of the 1920s, nicknamed the "Murderers' Row", during which time the team won its first six American League (AL) pennants and first three World Series titles.
Dean Martin (born Dino Paul Crocetti; June 7, 1917 – December 25, 1995) was an American singer, actor, comedian, and film producer.
 One of the most popular and enduring American entertainers of the mid-20th century, Martin was nicknamed the "King of Cool" for his seemingly effortless charisma and self-assurance.

Question: By what nickname was the star of Murderers' Row known?  
Answer: "King of Cool"