Perhaps an ATCO working in the USA could enlighten me?
Assuming the report in the avherald was accurate (I know, I know, early days, investigation barely started etc), is it normal to clear someone for departure across the flightpath of another a/c also cleared for takeoff?
Because it reads like that's what happened, here.
Any a/c departing N from the South ramp will cross runway 12, by the look of it. If the intention was to cross the helicopter before the Boeing commenced the roll, why not wait until that was a fait-accompli before clearing the Boeing to go, or at least provide traffic info once it looked like it was going to work?