July 2, 2011 8:38 am Cops Look to Solve Robbery Streak More than half a dozen businesses have been robbed by armed suspects in the past week. US & World Videos 0:35 Blue blobs washing up on San Diego beaches again 2:52 Poway Unified fires superintendent following investigation into bullying claims 0:34 5 people injured after falling from border fence 0:53 San Diego City Council Committee approves San Diego's next police chief 2:29 Family mourns 13-year-old killed in Escondido crash