Mark1974 -
I respectfully disagree with your thoughts. You suggest that senseless crimes such as this could be prevented if the owner of the firearm locked the firearm up and stored the ammunition and magazines in a different location. To a very small degree - I see your point - but there is a bigger picture.
The deranged individual involved with this sickening crime was apparently intent on killing completely innocent people and then committing suicide.
I doubt, very seriously, that a $10 gun lock would have detered a determined individual for more than 5 minutes.
Are you proposing that there be a law that requires firearm owners to keep their firearms locked up at all times?