The defense of self defense or defense of others boils down to this: would a reasonable person in the defendant's shoes have felt in danger of death or great bodily harm? If so, then they are entitled to use deadly force to protect themselves or others. It gets somewhat more complicated (aggressors who retreat, trespassers,etc.) but this is the bottom line. You would be looking for an experienced criminal defense attorney who spends the majority of their time defending criminal cases (vs. a great divorce attorney who dabbles in criminal law). You want an attorney who has tried cases like yours and won. You want an attorney with a good reputation for not being a crook. There are many attorneys in NE Oklahoma who fit this bill.