*hugs Lester*
I hope he will get over that horrible events.
Your description of Lester's emotional turmoil is spot on.
I can picture him completely thrown out of balance through the things Leek did to him.
And I can understand he feels relieved that he has killed Leek. To have the certainty Leek never gets the change to do it again will help with the recovery. Otherwise Lester wouldn't have felt save ever again.