From every angle, the skydivers are shown falling over wide open farmland. Yet the victim somehow manages to drop straight into the middle of a rush-hour freeway, something real skydivers never go near for obvious reasons.
Skydivers will always attempt to cut away their main parachute and deploy the reserve if there is an emergency as was shown. Altimeters are not "calibrated" by any pilot. When skydiving it is impossible to hear any person yelling, talking or otherwise.
Wilson's disease is rare and recessive so the mothers of the children would have to be carriers, as well as the sperm donor, making it harsh to blame him alone. Since the frequency of the allele is 0.428% amongst US Caucasians and the chance of two carriers having an affected child is 1 in 4, the chance of two random sperm recipients both being carriers and having a child with Wilson's disease is therefore very small (around 1 in 873,000).
The parachutist shown dangling from a tree would hardly be stuck. He could easily pop his harness release, and any trained skydiver knows how to drop safely from that height.
As the victim is shown skydiving, several quick shots show mountains in the background and rivers flanked by forests on either side, as well as extensive farmland. South Florida is relatively flat, and no rivers have trees, especially in the Miami-Dade county. Also, farms are in the far west of the county, several dozen miles from the coast on a rather thin strip of land bordering the Everglades, and are nowhere near as extensive as portrayed.