Gunmen kill crime lab chief in northern Iraq

Gunmen in the northern Iraqi city of Mosul ambushed and killed the director of the city's crime lab Tuesday in the latest targeted killing of security officials and government workers around Iraq, police said.
A wave of bombings and shootings have hit Baghdad and elsewhere in the recent weeks blamed on Sunni insurgents. US and Iraqi officials speculate that the pinpoint strikes seek to discredit the Shiite-led government after a seven-month political standstill following parliament elections in March.