Same Incident 2 Different Stories

On Saturday, police officers shot and killed a man up in Summerlin, at the Costco on Pavilion Dr.
Between Saturday and today, Monday, Metro's version is almost completely different.
Over the weekend, the spokesperson said one of the cops tapped the victim on the shoulder.
http://www.lvrj.com/news/slaying-of-army-veteran-shocks-friends-98223884.html
But then comes the Sun article: "Authorities said a Costco employee called 911 to report a man acting erratically in the store, damaging merchandise and carrying a pistol in his waistband. An officer approached the man, identified as Scott, then noticed the pistol and gave him verbal commands to lay on the ground, police said.
After Scott pointed the pistol at an officer, the officers fired at him, striking him multiple times, police said. He died at University Medical Center a short time later."
http://www.lasvegassun.com/news/2010/jul/12/metro-ids-officers-fatal-shooting-summerlin-costco/
So, what is the truth. Did the cops give different commands as have been suggested in the comments? Why are there different stories put out by the suits at Metro? Have all the witnesses been interviewed and are some "witnesses" just looking for their 15 minutes of fame?
Again, I was not there, but being a lay person, I do have questions. Again, officers have a tough job and they don't go to work thinking they are going to kill some one, especially up in Summerlin, in very well to do area of town. I don't really trust the inquest system as it usually is one sided and I also believe that if a lawsuit is brought, the case will be settled out of court before the true facts are known.
Eric Holder seems to be interested in investigating everything, maybe he and his buddies ought to come to Vegas and find out the real truth, one way or another. If the cops are right, great, if the victim was shot for no real reason, that needs to be addressed and if there is a training problem, that needs to be addressed.
But whatever the reason, we are having too many people being killed by cops and it is not a good thing, for the cops or the victims.