Full of suspense and psychological mystery!!

I most definitely need to read this book! I love the psychological aspects. Alicia shoots and kills her husband whom she seemed madly in love with. Nothing to give an idea as to why she would murder him! And now she won't even speak! Did she actual kill him and if so WHY? Did Gabriel deserve to die, if so, what did he do to Alicia to set her off in a murderous rage? I NEED to know how this book ends. Psychological thrillers are one of top genres to read!