what do cops look for?

Sold a lowered mini truck,to a business partner. Phone rings at 7:00 am ,on a Sunday .I answer it,local P.D..... The officer stated" Do you own this truck still?" .Stated "No, I have paper work ,to prove it." .Then the officer informs me,that the vehicle was seen leaving a homicide scene. I stated" I have the paperwork to back it". End of problem. As for Rani, " probable cause",some looking to meet quota .End of month near.