There was some blood on Vera Miles's fingertips when she touches the broken glass from the slide...but I don't know if that really counts because it was her blood, not the victim's.
We also see the bloody bullet hole in the head of the victim in "Dead Weight."
There is also blood in "Agenda For Murder." Frank Staplin's blood spot that 'dried' underneath the gun. That brings up an odd point. How long did it take the blood to dry? Finch put the gun on top of it almost immediately after the shooting if I recall correctly...