Well, the article just said "a 9mm S&W". If this was a Sigma series, it hasn't a traditional safety: just a extention on the trigger that has to be pulled first, and some people try to by pass this system. The proper proceedure for that (and any auto) is for one to remove the mag and empty the chamber...
P.S.- I just punched up the article, and it includes a picture of the weapon. It is not a Sigma. I am not familiar with this gun Maybe some one else is, but it looks like it has a button on the trigger...
