AE described this "blob" as resembling rabbits blood. Which brings me to tell something really embarrasing but,I feel relevant. Yesterday,I somehow ended up with a "blob" of menstrual blood on top of a wrapper on the side of my bath next to the toilet. I stared at it fascinated for ages as it was the approx the size of a match head and really did resemble a blob of jelly/jam. Anyway,I stored it carefully in my bedroom cupboard and today it is no longer bright red and has almost disintegrated and disappeared. I shall update you with results on day three. I really cannot believe how this "blob" of blood allegedly seen on the silencer was not questioned by blood experts. If it really was indeed seen by the relatives,and was indeed blood,then it had to have been fresh that day and certainly not three days old!