When circumstantial evidence is relied upon to prove murder, the inference of guilt can only be drawn if it is the only reasonable inference consistent with all the proven facts. Where an accused is found in possession of the deceased's personal belongings and keys to the crime scene immediately after the murder, was present in the vicinity at the relevant time, had a motive arising from relationship difficulties, and raises an unconvincing alibi defense contradicted by credible State witnesses, the only reasonable inference is that the accused committed the murder. Murder with constructive intent is established where an accused stabs a victim multiple times in vital areas (chest and neck) with a dangerous weapon, thereby realizing there is a real risk or possibility that such conduct might cause death, but persists with the conduct nonetheless. For sentencing purposes in murder cases, youthfulness and immaturity of an accused (aged 22) at the time of the offense, together with conviction for constructive rather than actual intent, constitute extenuating circumstances that reduce moral blameworthiness and must be considered cumulatively, although they do not eliminate the need for a substantial custodial sentence to reflect the sanctity of life and society's need for protection.