Salinas police are looking for a man who robbed a convenience store at knife point last night. Police say the suspect entered the 7-eleven on the 1300 block of Main Street at 7:30, when he held a knife to a clerk’s neck and demanded money. The robber fled on foot with an undisclosed amount of cash. Police describe the suspect as 5-foot-10 weighing about 160 pounds and dressed in black.