Khalifa Hussein / Khalifa Hassan / Khalifah Frayyih

From the news reports:

In another attack on Wednesday, gunmen shot dead Iraqi police Col. Khalifa Hassan and his driver as they headed to work in the restive city of Baqoubah, some 30 miles northeast of Baghdad, doctor Ahmed Fouad of the Baqoubah General Hospital said.

AP 05 Jan 2005