Dr Peace is the second boss and ninth ranked assasin. He uses dual golden revovlers though he never reloads and the fire rate is almost that of an automatic pistol.
The Easy Way to Defeat Dr. Peace
1. Circle him closely. He is a pistol user so you can get as close as you want without any real worry. Circling him makes his attacks more easily dodged (some of which you may have to emergency dodge)
2. AlWAYS emergency dodge his charge move (lets call it quick shot). Emergency dodge when you see him glow yellow
3. Wrestling moves when he is stunned does more damage than finishing your combo.
4. At the end of his fight he makes a last stand. You must press the button that shows up before Dr. Peace draws his pistol to end the match
Dr. Peace gives you the 9th rank, an LB and vitality bonus and unlocks the Tsubaki Mk-I at Naomi's Lab
NOTE: Dr. Peace's "quick shot" can be deflected back by a properly timed slice, though it is not recommended you try it. If you are playing the Heroes Paradise version for Xbox 360/PS3, Deflecting his quick shot is an achievement/trophy