However long it takes to build a case. If they cut corners to simply arrest someone all the armchair know nothings will complain about that.
Bottom line is, unless there is a known immediate threat to the public at large, they shouldn't release any details or info. It is under investigation.
I want the killer now. Just cut corners. Amazing how dumb and clueless the general public is.
There is a schit ton of evidence, especially DNA evidence, that has to be processed in a slow methodical approved way.
Everyone's "crime expert" because they watch murder she wrote of some ridiculous csi program