The point is that circumstantial evidence can be very very strong evidence. How often have you heard of murder cases that hinged upon fingerprints found on guns and ammo?<quoted text>
If you are referring "alibi to reason of why" it is circumstantial. If you were at Barbs Saturday and had dinner, left your finger print on a glass while helping her wash dishes. But while washing dishes she cut her finger so you grabbed her finger to put pressure to slow the bleeding and got some blood on your shirt. If she was found murdered the next day that may or may not convict you of murder. That depends on what the jury swallows from the PA(prosecuting attorney) and the DA(defending attorney).
You went home is your alibi and you had no reason to do it. Yet you look guilty as can be.
Disrespecting evidence simply because it is circumstantial is foolish.