A former police commissioner suing the city says he can implicate an associate of Mayor Martin O'Malley in a 2004 plot that entrapped Gov. Robert L. Ehrlich Jr.'s administration in a rumor-mongering scandal. Kevin P. Clark, who is suing over being fired in November 2004, says he lost his job, in part because a police probe of a city-owned laptop stolen from Baltimore Labor Commissioner Sean R. Malone threatened to expose Mr. Malone's link to the scandal. "We received information ... that there was information on the computer regarding a group called MD4Bush," said Neal M. Janey Sr., a lawyer...