The owner of a Scarborough jewelry store that has been targeted for robberies twice in two months says her children were “terrified” when a group of suspects backed into their business with a pickup truck on Thursday night in a shocking incident captured on video. It happened at a jewelry store in the area of Morningside and Sheppard avenues at around 6:30 p.m., just as the owners were about to close up for the night. “We had a customer… We were talking about rings and all of sudden we heard a