Question: Abraham Weinberg was a suspect in the killing of which Irish-American hitman?
Context: Abraham "Bo" Weinberg (January 7, 1900 – September 9, 1935) was a Jewish New York City mobster who became a hitman and chief lieutenant for the Prohibition-era gang boss Dutch Schultz.  As Schultz expanded his bootlegging operations into Manhattan during Prohibition, he recruited Abe Weinberg and his brother George into his gang.  Abe Weinberg would become one of Schultz's top gunmen during the Manhattan Bootleg Wars and was a later suspect in the high-profile gangland slayings of Jack "Legs" Diamond, Vincent "Mad Dog" Coll, and mob boss Salvatore Maranzano. Vincent "Mad Dog" Coll (born Uinseann Ó Colla, July 20, 1908 – February 7, 1932) was an Irish American mob hitman in the 1920s and early 1930s in New York City.  Coll gained notoriety for the alleged accidental killing of a young child during a mob kidnap attempt. George Hill Hodel, Jr. (October 10, 1907 – May 16, 1999) was an American physician.  After the 1947 murder of American woman Elizabeth Short, a.k.a. the Black Dahlia, police came to consider Hodel a suspect.  He was never formally charged with the crime, and came to wider attention as a suspect after his death when his son Steve Hodel, a Los Angeles homicide detective, accused George Hodel of killing Short and committing several additional murders. Civvies is a six-part thriller first broadcast on BBC1 on 22 September 1992.  The series was written by Lynda La Plante - her first writing contribution for the BBC, after being snatched in a "golden handcuffs" deal following the success of "Prime Suspect".  The series focuses on Frank Dillon (Jason Issacs), a former Army soldier who finds life outside the army tougher than being in it - and slowly falls under the power of east end gangster Barry Newman (Peter O'Toole), who is looking to hire a trained hitman.  The complete series was released on DVD on 3 June 2013 on Acorn Media UK. Killing Lincoln is an American television film inspired by the 2011 book of the same name by Bill O'Reilly and Martin Dugard.  The two-hour political docudrama was originally broadcast on National Geographic Channel on February 17, 2013.  Narrated and hosted by American actor Tom Hanks, the film stars Billy Campbell as United States President Abraham Lincoln and Jesse Johnson as John Wilkes Booth.  It was written and executive produced by Erik Jendresen ("Band of Brothers"), directed by Adrian Moat ("Gettysburg"), produced by Chris Cowen, Mark Herzog, Ridley Scott, Tony Scott, Mary Lisio, David Zucker, and Terri Weinberg. "What You Have Left" is the sixth episode of the American television drama series "The Killing", which aired on May 1, 2011 on AMC in the United States.  The episode was written by Nic Pizzolatto and was directed by Agnieszka Holland.  In the episode, the police further investigate Bennet Ahmed, which leads the Larsens to believe that he is a prime suspect.  The mayoral candidates hold their televised debate, allowing the current mayor to bring up Richmond’s attachment to a murder suspect. George Weinberg (1901 – January 29, 1939) was a New York mobster and, with brother Abraham Weinberg, an associate of Dutch Schultz as a mob accountant during the 1920s and 1930s.  In 1935, following the disappearance of his brother and the gangland murder of Schultz, he decided to become a government informant and testified against his former associates. Abraham bar Ḥiyya ha-Nasi (1070 Barcelona, Catalonia – 1136 or 1145 Narbonne, France) was a Jewish mathematician, astronomer and philosopher, also known as Savasorda (from the Arabic صاحب الشرطة "Ṣāḥib al-Shurṭa" "Chief of the Police") or Abraham Judaeus.  He was born in Barcelona and scholars suspect he travelled to Narbonne where he is thought to have died. Paul Morgan Genge (29 March 1913 Brooklyn, New York – 13 May 1988 Los Angeles, California) was an actor from the 1950s through to the late 1970s.  Genge is most famous for his role as the shotgun toting gray-haired mob hitman 'Mike' in the 1968 film "Bullitt" (his character is the passenger in the black 1968 Dodge Charger during the famous car chase that goes out of control and causes his death and the driver's).  Other film roles include that of a payoff man in "The Outfit" (1973), a California Highway Patrol officer in 1967's "Hot Rods to Hell", Whitey, a communist suspect in "The FBI Story" (1959) and Lieutenant Hagerman in "North By Northwest" (1959).  He also appeared on many television shows from the 1950s, 1960s, and 1970s.  He played in four episodes of "Perry Mason", starring Raymond Burr; in three of the roles he played a law-enforcement officer, such as San Francisco Inspector Wade in "The Case of the Poison Pen Pal" in 1962.  In his final appearance in 1966 he played Bud in "The Case of the Sausalito Sunrise."  Ironically, in that episode he and his comrade, in attempting to hijack goods from a truck driven by Paul Drake, are killed when their car loses control and rolls down the cliff, somewhat similar to the chase scene in "Bullitt". Branko Tomović (Serbian Cyrillic: "Бранко Томовић"; born June 17, 1980) is a German-Serbian actor.  He was born in Münster, Germany, though his actual origin is from the Carpathians in Serbia.  His parents emigrated in the '70s from the Golubac Fortress area on the Danube and Branko was raised between Germany and Serbia before he studied acting at the prestigious Lee Strasberg Theatre Institute in New York City.  Tomović was first seen on the big screen in the lead role in the American Film Institute/Sundance drama "Remote Control", for which he received the OmU-Award at the Potsdam Film Festival.  Currently settled in London, with his dark, brooding looks he has appeared in striking roles on British Television.  He played the creepy main suspect Antoni Pricha, the Morgue Man, in Jack the Ripper thriller "Whitechapel", the pyromaniac Junky-Henchman Marek Lisowski in the final episodes of "A Touch of Frost" and Polish fighter pilot Miroslaw Feric in the World War II drama "The Untold Battle of Britain".  Tomovic has worked with internationally respected film directors as Ken Loach, Sönke Wortmann and Paul Greengrass.  He was named "One to Watch" by "Moviescope Magazine" in 2008 and recent film credits include The Bourne Ultimatum opposite Matt Damon (Dir.  Paul Greengrass), It's a Free World... (Dir.  Ken Loach), "The Wolf Man" (Dir.  Joe Johnston), "Pope Joan" (Dir.  Sönke Wortmann) and "Interview with a Hitman" (Dir.  Perry Bhandal).  In 2010, he won the 'Best Actor' Award at the San Francisco Short Film Festival and at The Accolade Film Awards for his performance as a Serbian soldier who is tormented by grief and guilt after being a witness of war crimes in the drama Inbetween.  He also stars opposite Debbie Harry in Jimmy Cauty's Road movie Believe the Magic and Steve Stone's ghost thriller Entity with Dervla Kirwan and Charlotte Riley.  Entity won two awards at the London Independent Film Festival 2013 and Best Film at the British Horror Film Festival where Branko was also nominated for Best Actor.  The British Filmmakers Alliance honoured him as Best International Actor for his role and he was also chosen as a Rising Star by Icon Magazine.  He is set to play the title character of Nikola Tesla in the upcoming bio-pic Tesla.  In 2014, he played Jack Bauer's right-hand man, the mysterious and dangerous Belcheck, next to Kiefer Sutherland in 24: Live Another Day.  He was also seen opposite Brad Pitt and Logan Lerman in David Ayer's WWII drama Fury.
Answer: Vincent "Mad Dog" Coll