walking home from work and....

well i was walking home last night about 11.30pm and at the corner on my eye i see this black shadow move fast across the road from me , it only happened for a split second but it was very odd , no people or cars was about and it looked like it was right on the path not a shadow against the wall , dont know what to make of it but it could be the house thats infront of the path where the shadow figure thing was could have deamons and i just happen to see 1 for just a split second of time.
there was no shape to it , just a streak of blackness in the center of the path