1st degree murder
First-degree murder: any intentional murder that is willful and premeditated with malice aforethought.
Expamle: Is when some shoot some one that counts as a 1st degree murder and you possibly receive the death penalty.
1st degree murder
Having the intent to kill someone. Planning out a plot to kill. Assassination.
The assassin committed 1st degree murder by killed the man the assassin wanted to kill.