Marco died last June (2010) aged just 47. Marco was actually the first consultant we ever employed at Agena back in 1998. He was working at the Open University and had developed the Bayesian Knowledge Discovey tool with Paola Sebastiani (who we also worked with at the time at City University). We used Marco's expertise and tool on a project with a major insurance company. The last time I saw him was around 2000 or 2001 when I took him and Paola Sebastiani to a Turkish restaurant in North London to try and convince both of them to come and work at Queen Mary University of London where I had just moved with my research group. Although they turned down my offer in favour of a move to the USA I kept in touch with Marco until quite recently. I only found out about his death when I tried to contact him about a new project I wanted to involve him in.
Marco was a brilliant man, and (unlike some academics) was also pleasure to be around.