Make suppositions using can't have , could have and must have and back them Ex : Victim / strangled >The victim must have been nged Look there are finger maris around her neck ! I murderer / come in / window>… 2 . something / stolen>… 3 . detective / wrong >… 4 . weapon / hidden / well >… 5 . ch dren / scared >… 5 . criminal / have / accomplice>…