Batman: The Long Halloween, Part One

Harvey Dent was arrested when his corrupt assistant Vernon Fields found evidence supposedly linking Bruce Wayne to Falcone. The evidence claimed that Thomas Wayne (Bruce's father) had saved Falcone's life after being shot, suggesting Bruce was loyal to the Falcones. Alfred later testified that Thomas Wayne's report never surfaced due to police corruption, which helped declare Bruce innocent.

Alberto Falcone, the son of Carmine Falcone, is revealed to be the Holiday killer. He faked his death on New Year's Eve aboard the Falcone yacht and continued killing throughout the year, targeting Falcone's rivals in the Maroni gang. Alberto confessed to the killings, allowing authorities to delay his execution pending sanity hearings.

The killer leaves behind an untraceable pistol and baby-bottle nipple silencer at each scene, beginning with Johnny Viti's Halloween murder.

Harvey Dent becomes Two-Face after Sal Maroni throws a vial of acid (given to him by Vernon Fields) at Dent during the trial, disfiguring half of his face. Dent escapes to the sewers, befriends Solomon Grundy, and on Halloween resurfaces as Two-Face, seeking revenge against Falcone and Vernon for framing him and destroying his life.

The acid attack occurs during the trial when Maroni throws the vial at Dent's face, permanently scarring him.

Gilda Dent admits to starting the Holiday killings on Christmas Eve to ease Falcone's grip on Gotham and give her and Harvey more time together. She burned evidence including a pistol and her husband's clothing. She suspects Alberto lied and believes Harvey himself began the killings on New Year's Eve, though this remains uncertain.

The ending reveals Gilda packing to leave Gotham and burning a box containing a pistol, hat, and clothing in her furnace.

Poison Ivy traps Bruce Wayne on Valentine's Day under Falcone's orders, coercing him into laundering money for Falcone's crime empire. This removes Batman from the investigation and weakens the alliance against Falcone. Batman is freed by Catwoman on Saint Patrick's Day.

Johnny Viti, Falcone's nephew who ordered the assassination of bank president Richard Daniel, was killed by Holiday on Halloween. The murder left behind the signature Holiday clues: an untraceable pistol, a baby-bottle nipple used as a silencer, and a carved jack-o'-lantern.

The Sullivan family, Irish hitmen hired by Falcone to bomb Dent's home, were killed by Holiday on Thanksgiving. The killer left behind the same untraceable pistol and baby-bottle nipple silencer used in previous Holiday killings, along with a Thanksgiving decoration.

Vernon Fields found evidence claiming Thomas Wayne (Bruce's father) saved Falcone's life after being shot, suggesting Bruce was secretly loyal to the Falcone family. This led to Dent ordering Bruce's arrest. Alfred testified that the report never surfaced due to police corruption, helping prove Bruce's innocence.

Yes. After Alberto Falcone confesses to being Holiday, Two-Face claims there were two Holiday killers working together. Batman notes that with Dent killing Falcone and his remaining allies on Halloween, the possibility of a second killer remains. Gilda also suspects Harvey started the killings on New Year's Eve, suggesting she may be the other Holiday.

Alberto's confession allows him to avoid execution pending sanity hearings, and both Batman and Gordon are left uncertain about the truth.

Alberto Falcone (Holiday) killed his own family members because he was ordered to by his father Carmine Falcone to eliminate rivals within the crime empire. Holiday targeted Falcone's nephew Johnny Viti, bodyguard Milos Grapa, and eventually Alberto himself (faked) to frame the Maroni gang and fuel the war between the two crime families.

The Holiday killings initially appear to target Falcone's enemies but actually include his own nephew Johnny Viti on Halloween.

Batman, District Attorney Harvey Dent, and Police Captain Jim Gordon formed a tacit pact to end Falcone's crime reign by bending the law rather than breaking it. They agreed to use their positions, Batman's vigilantism, Dent's legal authority, and Gordon's police power, to dismantle Falcone's empire from within the system.

Sal Maroni, arrested earlier, offers to testify against Falcone after his father is killed on Father's Day. During the trial, Maroni throws a vial of acid (secretly given by Vernon Fields) at Dent, disfiguring his face and ending the prosecution's case.