Just watched the enjoyable film about the Zodiac killer at the Newham Showcase. Some teenage girls came up to me at the end of the film and asked me what I thought of the film, so I camped it up and said I’d been involved in an investigation, but couldn’t tell them who it was as they wouldn’t believe me. So they laughed and said I was must be the Zodiac!

Funny thing is when I got home I read handwritten notes from someone on that case I haven’t bothered reading before, and it reminded me also how addictive these cases are involving deep stuff about evidence and coincidence, emotion and fear.