I feel like Quincy. There's a trail of red in the back lane. But what is it? Is it paint? I am no expert of fluids. My training is actually bones; both animal and human, I can identify them. But I don't do soft tissue. And I don't identify fluids.
I have some knowledge of splatter. But that is based on shows like CSI, and an exhibit that was at the Museum of Man and Nature some years ago, put on by the Police Forensics department. Based on the the splatter of said red fluid, I would hazzard a guess that it started at the fence, and moved to the middle of the lane.
Further news in the lane today - it's Thursday and the garbage is still there. Here's hoping it gets picked up tomorrow.