In cases based on circumstantial evidence, the evidence must satisfy three requirements: (1) the circumstances must be cogently and formally established; (2) the circumstances must have a definitive tendency unerringly pointing towards the accused's guilt; and (3) the circumstances taken cumulatively must form a complete chain pointing to the conclusion that the crime was committed by the accused and no one else within all human probability. Circumstantial evidence must be complete, incapable of explanation by any hypothesis other than guilt, consistent with guilt, and inconsistent with innocence. When different categories of evidence (oral, physical recovery, and medical) are individually examined but then considered cumulatively, they may form an inescapable conclusion of guilt. Where there is no preconceived plan to kill and the fatal act follows an assault, a finding of constructive (legal) intention rather than actual intention is appropriate.