Here is the full list of all 17 The Deed achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
The butler is found guilty.
Use the shotgun as a murder weapon.
The verdict is suicide.
The maid is found guilty.
Use the billiards cue as a murder weapon.
Use the broom handle as a murder weapon.
Use the rope as a murder weapon.
Use the poison as a murder weapon.
Malcolm Bruce is found guilty.
The murder remains unsolved.
Use the knife as a murder weapon.
Use the fencing sword as a murder weapon.
Use your bare hands as a murder weapon.
Gloria Bruce is found guilty.
Use the candlestick as a murder weapon.
Get convicted of murder.
Use the broken glass as a murder weapon.