NEW YORK - Federal investigators want the public's help tracking down a man they believe ran one of the largest child pornography websites in the world.

Homeland security officials believe the suspect lives within 100 miles of New Haven.

Officials say his real name may be Shaun.

He is believed to be 40 to 50 years old, and may work in construction management as well as travel regularly.

Police say he is skilled with computers and may have family living in Hamburg, Germany.