Wilmington Police said on Tuesday that Nahum Dalmace, a 51 year old male from New Castle, died on Friday.
Cristofer Jackson of Ellendale and Deronta Persons of Milford were previously arrested. Charges against them have been upgraded to first-degree murder.
Authorities say the cab driver responded to a call for a ride in Bear on March 5th in which two men asked to be taken to Wilmington.
Police say at A and South Walnut streets, the men robbed and shot the driver