Complex sentence: Edison Chen's sex photo scandal started in Jan, 2008 when photographs of people with likenesses of Hong Kong actor Edison Chen with Gillian Chung, Bobo Chan and Cecilia Cheung were put on-line and spread through the internet.
Split into simpler sentences: Edison Chen's sex photo scandal started in Jan, 2008. The sex photos of seemingly of Hong Kong actor Edison Chen with Gillian Chung, Bobo Chan and Cecilia Cheung were exposed and spread through the internet.