Originally Posted by
supergran0606:
“Not being a swimmer myself I am left wondering how swimmers can go to the bottom of a swimming pool and not come up, did Roxi get caught in some filter or something and Ronnie tangled in her dress - can someone explain it to me
”
I'm unsure as to the physics, biology as to wht a body will at first sink and then float after death.
But, bodies aren't naturally designed to float. Any weight, including live human bodies, going into water will sink to the bottom, sooner or later unless action is taken to stop it. With swimming, that action is moving your legs and arms to stay afloat (treading water) or moving if. Should anything prevent that, your limbs not working properly because of cold, tiredness, being intoxicated, losing consciousness, then a person will sink to the bottom, their lungs will fill with water as they breathe and they'll drown.
With Roxy we don't know what happened. She might have got csught pn somethong, might have hit her head but might just as easily have passed out due to the alcohol and drugs, or the water might have been too cold, or she just didn't have the strength and coordination to swim.