Here is the full list of all 24 Fingered achievements.
Execute someone who smells like copper for trespassing.
Beat the game.
Electricute Matthias Bossi 'til he's dust in the wind.
Execute someone who has already been buried for pseudocide.
Execute a suspect for coprophilia, self-mutilation and assault.
Execute a man for ruining toothbrush mustaches.
Execute a flamboyant man for littering and sound pollution.
Execute a cursed man for bestiality.
To win the game, you must kill me... Edmund McMillen.
Execute a fishman for lurking by a murky lagoon.
Beat Day 14.
Execute a woman who is too clingy for violating trademark.
Execute a hemaphiliac for feticide.
James Id: Too weird to live, too rare to die.... but it was worth a shot.
Execute the head of the family for playing bad music.
Execute a suspect for ass****ism.
Execute a sticky suspect for property damage.
Execute a slimy suspect for peeing in pools.
Beat Day 7.
Execute a cry baby for matricide.
Execute a diabetic for looking funny.
Beat the game without using a continue.
Complete 100% of achievements.
Live and let Jon Evans die.