I can’t find the link but apparently there was a case of someone riding an escalator with gloves later used in a murder and several people’s DNA being found on

I can’t find the link but apparently there was a case of someone riding an escalator with gloves later used in a murder and several people’s DNA being found on the gloves. I think the police then track down each of these individuals and establish a motive or an alibi. But DNA alone shouldn’t convict someone.