This page sums up the deaths that has occured in the show. This is how it is shown:
Name of victim
Photo of victim Cause of death Name of killer, other person or people connected to the death.
Davey Murdoch and 3 of Arnold Rothstein's men
Shot in the head. Jimmy Darmody and Al Capone
Beaten to death.
James "Big Jim" Colosimo Frankie Yale, Johnny Torrio
Shot in the back of the head.
Simon Killed by Nelson Van Alden but shot by Jimmy Darmody
Died of blood loss.
Kendall The D'Alessio brothers
Lynched.
Pearl Herself but Liam drove her to it.
Shot herself in the head.
Jimmy kills Sheridan. ("Family Limitation")
Charlie Sheridan, Thug 1 and Thug 2.
Shot in the head. Jimmy Darmody, Johnny Torrio
Shot in the head. Al Capone, Johnny Torrio
Shot in the face. Richard Harrow, Jimmy Darmody
N/A Shot in the back of the head
Female Bystander
N/A Shot in the chest. Sixtus D'Alessio (Accidental)
Shot in the head. Jimmy Darmody
N/A Strangled. Chalky White
Poisoned. Louianne Pratt
Eric Sebso Drowned. Nelson Van Alden
Shot in the face. Richard Harrow, Nucky Thompson
N/A Shot in the face. Richard Harrow, Nucky Thompson
N/A Shot in the head. Al Capone, Nucky Thompson
N/A Throat slashed. Jimmy Darmody, Nucky Thompson
Unamed Bootlegger
N/A Shot in the face. Lucky Luciano