Statutory Aggravating Factors 3592(c)(2) - Previous conviction of violent felony involving firearm 3592(c)(3) - Previous conviction for which sentence of death or life was authorized 3592(c)(4) - Previous conviction of other serious offenses 3592(c)(9) - Substantial planning and premeditation Non-Statutory Aggravating Factors Additional, continuing, and patterns of violence Contemporaneous convictions Future Dangerousness Mental State 3591(a)(2)(C) 3591(a)(2)(D) Number of Victims Two Criminal Offense § 1959