“Or perhaps it's a calling card,” said Ollie.
“What do you mean?” said Cross.
“Oh, you know. When someone commits multiple murders, they like to leave something behind linking them to the deed. Or it may be they arrange the body in a certain fashion, or leave it in a specific surrounding, something like that. Serial killers are notorious for it. Obviously, they don't want to get caught, I mean, who would, but their egos won't allow anyone else to take the credit for what they've done. That's why the police always hold back on giving out all the information about a murder, especially if it's linked to others. They always keep some details to themselves to weed out the hoax calls.”
“I see what you mean,” said Deirdre. “It's like an artist signing his paintings.”
“Exactly,” said Ollie. “O
