Eddie,
Your right, if someone is in the crosswalk, cars must stop. Up here most people just stand on the curb and wait till the cars have cleared then begin to cross the crosswalk. This being in areas where there is no traffic light.
I have seen several times where someone does begin to cross and cars don't even begin to try to stop. I really wish they would install flashing lights on all crosswalks were there is no traffic signal. I guess life is not as important as the cost of the lights being installed in these locations. Up here, it usually takes someone to get killed at an intersection before they do install a traffic light if it's a busy intersection.
Regarding the coworker who got killed.....I looked up on Googe where it happened and it was in a country section where there was a "T" intersection. The 18 year old was driving a 1996 Ford Van and failed to stop at the stop sign coming out from a residental street into the two lane highway. So, Kirk must have been going at least 45 mph when this kid came out onto the highway. There was no stop sign for the road Kirk was on, so he had full right of way and prob didn't even see this guy come out from the side street.