Chapter 53: Criminal Investigation World (3) "Bladed weapons..." Chen Chen pondered for a moment, then suddenly clenched his fist and struck his palm, exclaiming with delight, "Xiao Lin, what you said makes perfect sense! That’s right—most homicide cases primarily involve bladed weapons. A serial killer relying on blunt instruments is already unusual, but we had been stuck on the idea that the perpetrator either had a criminal record or an abnormal preference for blunt weapons. Your perspective…