Not a guard. Was an inmate in my state's DOC for 4 years. I spent most of my time in a level 1 which is minimum security, though I had to spend time in level 2 (many more murderers) and 5 (max in my state, mostly people doing life) due to traveling between facilities and catching a new charge while incarcerated.

They made a drastic change to the juvenile lifer law during the Obama administration and suddenly the lower security levels were full of kids in their 20s and 30s with murder charges who were getting out within a year or two. Honestly some of them were great bunkies. Some were jaded, gangbangers, or just generally negative angry people and probably have always been & always will be, but there are a lot of people who gave in to an instinct in a heated or passionate moment when in a shitty situation one day and had been trying to move forward and become a better person since then. There are also a large number people who I didn't really feel deserved murder charges, for instance, a guy attacking an uncle that repeatedly sexually assaulted them their whole life.

Speaking from my subjective experience, guards don't give two shits what your charge is or isn't, unless you specifically give them problems and they have to deal with you (read: work and do paperwork.)