A Stranger Is Watching [abridged]

Two years after Nina Peterson's brutal murder her husband Steve is still fighting to bring the killer to justice. Their six-year-old son Neil remains haunted by the terrible vision of the murderer's hands wrapped around his mother's throat. And Sharon Martin, who has grown to love both Steve and Neil, wishes only to ease their pain and suffering.
But as 19-year-old Ronald Thompson sits wrongly convicted on the eve of his execution, a stranger is still watching -- still plotting as he did before, living for the moment when he can kill and kill again...