The Four Hundred Caliber Killer

Killer left a letter at the scene of his sixth attack. It was handwritten, mostly in capital letters and addressed to captain joseph barrelly. He also used what looked like deliberate spellings such as spelling women w e m o n weman instead of women. This use of deliberate misspellings echoes the zodiac killer who had done something similar in his letters just a few years before. To stop me, you must kill me. Attention all police, shoot me first.