Black triangle hovering silently approximately 100 ft above ground

Just bought grocery and it was a quiet night with the bright jupiter on the east, so I scan above to check if Saturn is somewhere near and I saw two stars, but then one star started moving, and I grab my phone and starts recording, as i am recording I see the lights moving slowly and silently and then took off in hyperspeed, no sound. upon reviewing my recorded video, it turns out that one light is part of the other 2 dimly lit light that formed a triangle.