47-year-old father of two, husband as well. right now police are trying to determine what could have motivated this killing. >> we have not been able to extract any details regarding a motive at this point. as far as we know, deputy goforth had no previous contact with the suspect. it appears at the outset to be clearly unprovoked. our assumption is he was a target because he wore a uniform. >> let's bring in nick valencia now. what do we know about him? >> shannon j. miles, charges include trespassing, disorderly conduct. he's now facing capital murder charges for the execution style