Zanku

Zanku, also known as Zanku the Beheader or Zank, was a notorious serial killer. He was known for severing the heads of his victims, as his moniker implies. Night Raid was contracted to track him down and kill him.

History
Zanku was originally an executioner for one of the Empire's prisons, but went mad from guilt after taking countless lives. He showed symptoms of schizophrenia, hearing dark voices that drove him closer to insanity with each day. He eventually escaped his position after stealing the warden's Teigu, Spectator. He was wanted by the Imperial Police ever since. Zanku began his rampage, killing random individuals throughout the Empire to sate his bloodlust, beheading his victims. Soon, Night Raid was contracted to assassinate him. Akame and Tatsumi both fought Zanku, and after a struggle, he gets his throat slashed by Akame, and was finally able to find peace as he died.

After Zanku was killed, Night Raid took the Teigu back to their base, where Tatsumi briefly tried it which ended in a failure due to compatibility problems. After it rejected Tatsumi, Night Raid sent it to Revolutionary Army HQ for safe keeping.

Equipment and Skills
Zanku was the user of the Teigu, Spectator, a headpiece that allowed him many mental abilities, including hearing the thoughts of others, and accurately predicting their next move. He uses a pair of hand blades that look like Katars to cut his opponents ruthlessly.

Trivia

 * In the official English subtitles, Zanku's name is spelled as Zank. His title was also translated into multiple terms for beheading in English, such as Beheader, Executioner and Headhunter.
 * The name Zank means "quarrel" in German.

Zank Занк 殘克