This is Wainer Verri in the fotoromanzo "Quel cielo lontano" from 1980:
Unfortunately, the pics of the unknown actors in Nude per l'assassino
are no longer working and I don't have my DVD here so I can't check and see who Verri plays in the film. It's a long time since I watched this film but I think maybe he played Erna Schurer's boyfriend. Can anyone check??