I think they are also suicides, but I’m going to go out on a limb and say there is a space-time vortex underneath the Golden Gate bridge. When someone hits it just right, they are torn apart, with the feet getting teleported to British Columbia and the rest of them getting teleported to a big mound of body parts located in a crater on the dark side of the moon.
When we find a crater full of body parts on the moon you are going to be hauled in to answer some hard questions buddy! :)