What is Aggravated Murder?

What is aggravated murder? Charges for murder in defined by degree. First degree, being the worse (usually this indicated intential) and involves police or other state and goverment official. Second degree Murder is injury was intended but it resulted in death(a heated argument). Third degree or manslaughter is when the death was accidental. For example such as playing with a loaded gun and the bullet discharges and kills someone in the room or driving while under the influence or intoxicated.Aggravated murder enhances first degree murder.