Unfortunately, the answer to this question is “no”. There are many cases where a crime has obviously occurred, but there is no way to identify who committed the crime and no witnesses or evidence that will help solve the crime. In this circumstance, the report is given to a detective to review but is not otherwise investigated.
Cases with identified suspects, evidence, or other leads are prioritized based on the seriousness of the crime and the availability of investigative resources. Even some “solvable” cases cannot be actively investigated due to the volume of other cases or limited investigative resources.