i swallowed the lump that formed in my throat at his words . i ... felt his concern , his worry as he was running through . one hand rose to cup my cheek . mathews thought he was the killer ? sierra looked at the old woman for a moment , smiled and shrugged lightly , i know , thanks anyway , i just dont get it . it was the first time she saw it . he had n't while shopping with her . do you know how many panic buttons are hidden in this apartment ? 