all those things in SA are bullshit.
-the ghost cars were just regular vehicles that happened to spawn on a slope, so they roll downhill.
-"secret" rooms are usually just parts of the map added for detail, or they are places for easter eggs.
-the ufos were supposed to be lights of planes added to the skies at night for detail.
-the suicidal photographer was just a scripted ped that spawns to take photos, similar to the soapboxxers, buskers etc.. in GTA IV. the reason the ped always walked into the water (and drowned) was because when the ped is released from the script, theres no path around, so the ped walks forward. if there was no water there, the ped would just keep walking forward.
-there was no serial killer. there were criminal peds like every gta that shoot at or run away from cops, thats about it. anything you see on youtube other than this is a mod.
-the only animals were birds, fish and other sea creatures. others seen on youtube are mods.
-there arent any ghosts, just misplaced peds. others seen on youtube are mods.