By chance his first wife moved into the same block as his proposed future wife and Donovan killed her earlier in the evening but had to return for the solicitor's letter which he knew was on the way but hadn't arrived in time.
By chance his first wife moved into the same block as his proposed future wife and was threatening to tell Patricia about their marriage. To stop her, Donovan killed her earlier in the evening but had to return for the solicitor's letter which he knew was on the way but hadn't arrived in time.