Complex sentence: The publicity surrounding the stabbing attracted the attention of Suzanne Dechevaux-Dumesnil, who knew Beckett slightly from his first stay in Paris; this time, however, the two would begin a lifelong companionship.
Split into simpler sentences: The publicity surrounding the stabbing attracted the attention of Suzanne Dechevaux-Dumesnil, who previously knew Beckett slightly from his first stay in Paris. This time, however, the two would begin a lifelong companionship.