Detective Conan, Umineko no Naku Koro ni Recommendations
Has a mystery feel to it and both are about finding culprits in murders and other situations
Truthfully speaking, I have doubts about the similarity between the two, while the first one is all rational and can be explained properly at the end of ever episode, the second one is rather perplexing. Though both still solve cases in the most rational mind that "humans" can commit the said murder to remove the fact the death may have been cause by some paranormal reasons.
they both keep you on the edge of your seat