Ok, here we go... someone may have thrown a box of bees at the tree.......??? That would be a new spin and sad for beekeepers :sad: but of course that sounds like dramatic rumors...
http://losangeles.cbslocal.com/2017/09/16/6-stung-2-hospitalized-following-bee-attack-in-monterey-park/
If someone noticed the bees a few days earlier they should have called someone to come and move them before this happened. It sounds like it could have been avoided.