Police say it all started in a parking structure in the Anaheim Garden Walk around 2 a.m. Wednesday. Authorities say a fight broke out between two groups of people.
A short time later, one of the people involved noticed someone driving off in his BMW. The car's owner and his friends chased the car. That's when one of them was hit and critically injured.
Officials say the suspect then got out of the car and ran away. Police are still looking for that man.
The victim was rushed to UCI Medical Center.