From the Lincoln paper:
State lawmakers voted to abolish the death penalty in Nebraska on Wednesday, setting up a veto showdown with Gov. Pete Ricketts that is expected to draw national attention.
The 32-15 vote to pass LB268 was the culmination of decades of work by Omaha Sen. Ernie Chambers and other opponents of the death penalty inside and outside the Nebraska Legislature.
Zack Pluhacek, Death penalty repeal passes Legislature, awaits veto, Lincoln Journal Star (14 minutes ago).
Update: A minimum of 30 votes is needed to override a veto. Joe Duggan / World-Herald Bureau, Nebraska lawmakers vote to repeal death penalty; Ricketts has promised a veto, (May 20, 2015).