The "mild" rating here is very misleading. Nearly every episode contains at least one murder. Usually the corpses are seen in full detail. There are shots of people with slit throats, stab wounds, bullet wounds, and even missing heads. All of this is usually shown onscreen. It's rare that they shown people actually being murdered in graphic manner, but it happens occasionally.
Virtually every episode has at least one murder. A man's head is decapitated but not onscreen.