Sex workers are replaceable items as far as pimps are concerned. They are always more girls to replace a problematic one. I am not saying that Shannan's death was a deliberate planned murder by her pimp/driver. But have no illusions about a pimp's loyalty to any of his workers.
Imagine some freak payed for full on BDSM for Shannan specifically - would a pimp think twice about drugging the girl if we are talking about a lot of money?
That is what I see as most likely here. Shannan reacted atypically to ghb+klonopin (for instance) and suddenly regained consciousness and went from pliable zombie to intensely aware of her surroundings. She is now no longer the cash cow but a Molotov cocktail with a match to go - the latter would be her 23 min 911 call.
Hacket - what if Pak just told him - when Alex was out of earshot that day they went to oak Beach - ”hey here’s her mom’s number give her a call to calm her down”.
Or just left a calling card with Mari’s number. PH being the busybody he is would love to meddle if given half a chance.
I mean who does that…I guess he assumed Mari was as gullible and passive as the average lady, but boy was he wrong…