That’s why I like the biblical standard of two or more witnesses for a death penalty. One witness will not suffice. DNA and other evidence can be counted as a witness, in my opinion.
This man was convicted by the testimony of ONE witness, not sufficient for conviction in my book. One witness can certainly be right, but it is not enough for a just society.
Similar to treason. The Constitution requires at least two witnesses for that. Unless a confession in open court. Seems reasonable and just.