UFO Sighting in Los Angeles, California on December 13th 2015 – Two craft traveling together and criscrossing as they moved.

I was water the potted plants in my back yard when I caught a light in the corner of my eye. I looked up and 2 dark craft were traveling pretty fast from the NE to the SW, crisscrossing each other as they traveled. I tried to video, but I seem to have only captured one craft blinking and disappearing.