Kai lathers his upper lip with shaving soap twice while talking with Winter.
Steven Parent was driving his father's white1966 AMC Ambassador, not a yellow Buick, as depicted here.
When Tex Watson slashed Steven Parent with the knife, he cut off the watch that Parent had on his left wrist. There is no watch depicted at all on Parent's wrist here.
Parent was shot with a .22 Caliber High Standard Longhorn revolver. The gunshot heard here sounds like a very large caliber weapon, like a .44 or .357, not the much quieter 'crack' of a. 22.