Boston Police Captain Yates believes the death was accidental but his subordinates , Lieutenant Martin Quirk and Sergeant Frank Belson , believe otherwise .
Spenser 's opinion is that she was murdered and the scene was staged to look like an accident .
Boston Police Captain Yates believes the death was accidental but Spenser 's subordinates , Lieutenant Martin Quirk and Sergeant Frank Belson , believe otherwise .
Spenser 's opinion is that she was murdered and the scene was staged to look like an accident .