Valero doesn't deserve much sympathy for killing his wife but what makes me wonder is all the head trauma he had... I am not saying that it is automatically the cause of his behaviors but living closely to somebody who has had a bad head trauma himself, I can assure that it can totally change the character of somebody in the nick of time. Cerebral lesions are a bitch, believe me. IF he did drink and that it did cause even more problems, it totally makes sense as well as cerebral lesions are strengthening the reactions and confusion that somebody would normally have. It would be interesting to know how he was before his brain lesions and after as well as his reaction to alcohol before and after the incident.