On that note, you might want to scroll around this website and take a look at the cases.
We work to free the innocent, prevent wrongful convictions, and create fair, compassionate, and equitable systems of justice for everyone.
innocenceproject.org
The vast majority of them were wrongfully convicted based on "eyewitness testimony". The vast majority were then released based on DNA evidence.
What this tells us is that it matters not how many "witnesses" say X is guilty.
A single piece of DNA evidence will instantly overrule any "witness testimony".
What that in turn tells us is that "witness testimony" is notoriously unreliable and will instantly be overturned based on but a single piece of objective evidence.
You should reflect on that.