In the end did Sgt. Lucas have some sympathy for Walter?

I mean the first time he paid Walter a visit he commanded him to sit down, forbid him to ask any slight question and verbally degraded him (at that time maybe even justifiably), but then the last time he paid him a visit he courteously stopped and gave Walter his attention when Walter called his name and let him ask a question, then even gave Walter a full explanation about the beating victim that was wanted for rape, even congratulating him on moving in with his new girlfriend, and the way he said the kid witnesses description of the assailant highly matched him I kind of got the impression that maybe he knew Walter was the assailant and he took that as a sign that Walter may be slowly healing from his evil.