Complex sentence: A news report releases captured CCTV footage from the robbery at Audrina Patridge's home, which concerns Marc, however Rebecca is undeterred, and instigates a burglary at the home of Rachel Bilson.
Split into simpler sentences: A news report releases captured CCTV footage from the robbery at Audrina Patridge's home. This concerns Marc, but Rebecca is undeterred and instigates a burglary at the home of Rachel Bilson.