The two women locked eyes across the West Baltimore grocery store parking lot. “I’m Traci’s mom,” said Tammy Bombardier, raising her hand in a shy wave. Bonnie Marquez swept her up in a hug, then put her hands on the other woman’s shoulders. “I can tell you from experience, I’m not going to know exactly where your daughter is, but I am going to know by the time I leave Baltimore if she’s alive and if she’s been seen.”