Walker had fled to England from Canada with what police say was millions of dollars of investors' money. Sheena, then 15, came to England with her father in 1990, eventually assumed the identity of his wife and bore two children. But she was unaware, she told the court, that while she was vacationing with her father and two daughters in Devon in July 1996, Platt was also in Devon, not in France as Walker had told her. It is alleged that Platt and Walker went sailing together the day Platt was slain.

Walker helped Platt find an apartment and gave him money, Barton asserted and Sheena Walker testified. There was talk of him setting up another TV repair business. There was talk of Platt moving to France, which Walker told Sheena he eventually did.

Sheena Walker said she knew none of this at the time. She assumed Platt was in France. When the police traced Platt's identity and called Walker, who told them he was David Davis, "he was shocked at first," she testified. "But he said it probably wasn't Ronald, but he probably said that to reassure me. I was shocked as well."