A look back at a trio of teenage girls who belied their innocent looks to become serial killers. Sisters Regina and Margaret DeFrancisco were two teenage girls who made national headlines for murdering Oscar Velazquez, a suitor of Regina. The two young women invited Velazquez to their home where they lured him to the basement and shot him to death. His bod was wrapped in a tarp and set on fire. They would gain national notoriety when they went on the run and became fugitives.