Murder is a 2 point rogue talent located in the 6th tier of the assasination tree. It increases damage against all targets.
Rank table
Rank
Damage increase
1
2%
2
4%
Patch changes
Patch 3.3.0 (2009-12-08): This talent now provides a flat damage increase of 2/4% against all targets, instead of only targets which do not appear in Icecrown.