Acheron
Acheron provides an easily readable glimpse into the cause of death for anyone in your raid or party.
Wrath of the Lich King 
Mists of Pandaria 
The Burning Crusade Addon Details
Expansion
Categories
Developers
Having issues?
Acheron provides an easily readable glimpse into the cause of death for anyone in your raid or party. In addition to the damage and healing that occurred to someone up to their moment of death, Acheron also allows you to track and displays buffs and debuffs, which may also contribute to someone's death (Melt Armor on Al'ar, Corrosion on Felmyst, tank missed shield block, etc).
Right-clicking on a raid/party member unit frame will find a new option 'Show Death Reports'. Should be pretty self-explanatory from there.
/acheron show to show the main UI
/acheron config to bring up the config
Download Acheron
More addons for Wrath of the Lich King
Discover other addons that might interest you
Molinari
One-click Milling, Prospecting, Disenchanting and Lockpicking!
PhoenixStyle
Tracks raid fails, and other useful information on boss fights.
Error Filter
ErrorFilter manages the errors that are displayed in the blizzard UIErrorsFrame
Virtual Piano
Play a virtual piano when you are bored.
Atlas Project Epoch
Atlas for Project This is a modified version of Atlas that contains Project Epoch custom…
LoseControl
Displays the duration of CC effects on your character.
TrainerSkills
Shows the class trainer frame from anywhere.
DiminishingReturns
Attach diminishing return icons to unit frames.