By that time, the actual perpetrators of the crime will be apprehended.
This created a system that seemed to ignore the actual perpetrators.
The defendant, however, claims he saw the murder play out in a dream, with the actual perpetrator another man whom authorities are unable to locate.
The actual perpetrator had blown himself up, leaving behind, most mysteriously, two left legs.
Usually, at the end of the case, the person who is on the stand being questioned by Matlock is the actual perpetrator.
Rape is the most gender specific of all crimes: only a man over 14 can be the actual perpetrator, only a woman the victim.
This allows the actual perpetrators to blame the other party and react to the offense.
Sometimes the person who is framing someone else is the actual perpetrator of the crime.
Usually it's done with Spence out of town, so he'd have an alibi if the actual perpetrator got caught or left traceable evidence.
The actual perpetrator seems to have been led by the hand to the spot, and then abandoned hurriedly to his own devices.