Matt here, pinch-hitting for the Joonmeister. Week 5 of Guest Constructor Month, where Craig Mazin and David Kwong tasked solvers with unmasking the dastardly Crossword Killer.
First thing to notice was the presence of three poor souls in the grid: CORPSE, BODY, and CADAVER. This had to be the work of the Crossword Killer. That heartless monster! We must unravel this crime before another innocent victim is lost.
Second insight: each of those three bodies has a long trail of the same letter leading from it: the O in CORPSE starts a line of O’s, the B in BODY a line of B’s, and the first A in CADAVER a line of A’s. See grid at right and marvel at my Paint skills.
Third insight: those are all blood types, so we’re looking at trails of blood. The trails end at the words PROFESSOR, BLOGGER, and SHARP. This makes our killer the noted, loved, and feared crossword critic REX PARKER, who is a college professor by day, a crossword blogger by night, and whose real name is Michael Sharp. If you didn’t know all that, entering PROFESSOR BLOGGER SHARP into Google reveals it as well.
Thanks, Craig and David! This was quite the crossword mystery. Thanks to the efforts of the 174 solvers who got it right, Rex has been arrested and is currently being held at Broome County Regional Jail for his alleged crimes.