What was worst political scandal in NYC history?

In library today I ask Nick Taylor what worst scandal New York history? And he said,that covered a lot ground.I said,well it lead to a police office electric chair and the D.A becoming governor.He said,Dewey I said no.Then I went on to describe the Becker Scandal.Charles Becker was a Lieutenant in New York City police Dept..He was also head vice,however, he part took in business he suppose shut down.For business partner was none other then Herman"Beanis Rosenthal,well know gambler big time bookie.Well it seem Rosenthal felt he was giving Becker too money,too much graft, so he went to papers,hence,Becker had Rosenthal murdered. Well Newspaper called Hebert Bayard Swope,a reporter for the New York World(by the way his brother was Gerard Swope who headed G.E for a while) made much story.Becker was indicted for murder.He had two famous attorneys one was W.Bourke Cockran,a Tammany pol noted orator and a lover a Jenny Churchill,indeed,it's said Winston Churchill coped the speaking style of Cockran.Second was Lloyd B. Stryer.The D.a was Charles Whitman,this case would made he would become Governor of New York and 1920 he try to get the G.O.P nomination for president he fail.
There were two two trials both time Becker was found guilty,however,after first trial an appeal was made and verdict was overturned and new trial was set.Again he found guilty.The Judge Sammel Seabury(later to famous for Seabury commission) sentenced Becker to death.This time appeals didn't and ironically Becker's last hope was the governor,grant a stay of execution,however, at time the Governor was Charles Whitman.So on 7/30/1915 Becker faced his marker.