Complex sentence: To make matters worse, she is arrested for an assault that her son Jamie carried out, though she openly wants to take the blame for the attack, claiming "A mam's gotta do what a mam's gotta do".
Split into simpler sentences: To make matters worse, she is arrested for an assault that her son Jamie carried out. She however openly wants to take the blame for the attack, claiming "A mam's gotta do what a mam's gotta do".