>> reporter: at 37 years old chris cade is the oldest in the class. army vet who served in iraq. >> be right there. get out of that truck. >> there's three white students and six black students. working with them has changed how i look at a lot of different aspects because i don't experience life the way they do. so listening to them, it kind of brings out maybe this dude's been treated wrong. maybe that's why this guy may have this massive attitude or may be mad or may be scared, because he's been treated poorly. nowadays you have to think about that. like chief hill said, you've got to have that empathy. >> reporter: tyrese davis says growing up in baltimore the messaging was clear. don't become a cop if you're black or a minority. he's the first in his family to go to college, paying for it and the police academy himself. he works full-time on the night shift. >> i work sunday through thursday 11:00 p.m. to >> reporter: it's a grind with a goal. >> the bad officers and what they do really can affect what i can do because now i've got to push harder