A man charged with sexually assaulting three women at a Connecticut drug rehabilitation center where he worked as a janitor told investigators he had a lust problem and succumbed to temptation, say police. Rafael Cartagena, 40, of Bridgeport, was charged Saturday with three counts of first-degree sexual assault and four counts of fourth-degree sexual assault. Police said the assaults were reported in June by workers at the New Prospects Program center, which treats people with drug addiction and psychiatric disorders. A judge signed a warrant accusing Cartagena of sexually assaulting three clients at the facility. Cartagena is detained on $450,000 bail and is due in Bridgeport Superior Court on Sept. 9. His lawyer did not respond to a message seeking comment Tuesday.