> a video of person A killing person B Usually this would be circumstantial evidence because you have to infer it was actually person A and B in the video, and

> a video of person A killing person B Usually this would be circumstantial evidence because you have to infer it was actually person A and B in the video, and it actually depicted the murder. There could be alternative explanations, such as "that was my twin" or "we were performing a murder on stage". Indeed, the common metaphor for the strongest possible evidence in any case—the "smoking gun"—is an example of proof based on circumstantial evidence Similarly, fingerprint evidence, videotapes, sound recordings, photographs, and many other examples of physical evidence that support the drawing of an inference, i.e., circumstantial evidence, are considered very strong possible evidence https://en.wikipedia.org/wiki/Circumstantial_evidence https://en.wikipedia.org/wiki/Circumstantial_evidence