Did he murder his first wife too?

A convicted killer who dumped his fiancee’s body in a cesspit appeared at the Old Bailey charged with murdering his first wife a decade ago. Ian Stewart, 59, was convicted of murdering children’s author Helen Bailey, 51, at their £3.3 million home in Royston, Hertfordsire, in 2016. Stewart slowly drugged Ms Bailey over several months before suffocating her. He then dumped her body and that of beloved pet dachshund, Boris, in a 100-year-old cesspit below their house. Ms Bailey’s remains…