Ah I see, that is a shame.
A keeper told me back then that he was around 21 when he passed away, so he wasn’t as old as he could’ve been but wasn’t a spring chicken either. He had previously been at Rotterdam for a number of years before his move to London.
The zoo now have four Chinese giant salamanders, with three of them being behind the scenes and this one, Professor Lew, on display. All four were given to the zoo by the Border Force after an attempt to smuggle the animals illegally into the country.