sentences:  When the perpetrator was revealed to be Emily Stewart, an investigation was launched and it was later determined that Barbara Ryan, Rosanna's mother-in-law, had been drugging Emily to get back at Rosanna for marrying Paul, killing two birds with one stone by using a long-standing enmity with Emily to destroy her daughter-in-law emotionally.Barbara was also revealed to be in cahoots with her ex-husband, James Stenbeck, who had saved Cabot from the fire.He later revealed this to Rosanna, and demanded that she falsely implicate herself in Emily's drugging in order to spare Barbara from prosecution and additionally, end her marriage to Paul and leave town with him.