he is expected to recover. our live team coverage begins with julie live at boston medical center. julie. >> reporter: lisa, david, that officer whose name is being withheld is in fair condition. he's expected to be okay. thanks in large part to a newly issued department tourniquet. >> i'm at 33 mount bowdoin terrace, shot. >> the nine-year decorated veteran police officer was chasing down a dangerous drug dealer, a felon, when he was shot in the leg. >> unprovoked, again, our officers not having their weapons out, from what i understand. >> members of the drug unit had cornered up in a car on mount bowdoin terrace in dorchester. >> at first, i thought it was fire crackers and then when i heard two more gun shots, i got up. >> i heard police yelling, police, and he kept on running. >> commissioner evans says the injured officer tried to tie his newly issued tourniquet, when a fellow officer came to his aid. >> i don't know what he was thinking. >> the suspect's father who saw his son not long before the shooting says he can't explain any of this. >> he is from a good family. we don't condone that kind of b