Christopher "Monster" Selby, 30, was the last of three men who escaped from a jail in the capital city of Port of Spain.
He surrendered Sunday after two of his fellow escapees were shot to death.
"He is now in police custody," police officials said in a message to CNN affiliate CNC3.
Shortly after the escape from prison following a shootout, police killed one of the escapees -- Allan "Scanny" Martin -- on the grounds of a local hospital.
Another escapee -- Hassan Atwell -- was found dead Sunday, just before Selby turned himself in.
Atwell's body had gunshot wounds, but it was not immediately clear who shot him. Police are treating his death as a murder, the affiliate said.
The government had placed airports and seaports on high alert after the violent escape that left prison guard Sherman Maynard, 27, dead.
The escape involved an exchange of gunfire between the prisoners and police, but it's unclear how the inmates got weapons.
Atwell had been awaiting extradition to the United States on charges linked to an alleged hostage taking. Selby and Martin were facing murder charges.