Complex sentence: Eventually, her search (which involves finding Slavicky murdered and being accused of being the culprit) leads her to Laurel Hedare, who she asks to keep an eye on her husband, to which Laurel agrees.
Split into simpler sentences: Eventually, her search (which involves finding Slavicky murdered and being accused of it) leads her to Laurel. She asks Laurel to keep an eye on her husband, to which Laurel agrees.