Complex sentence: A second man, Roger Arnold, was investigated and cleared of the killings; however, the media attention caused him to have a nervous breakdown, and he blamed a bar owner, Marty Sinclair, for the police investigation of him.
Split into simpler sentences: A second man, Roger Arnold, was investigated and cleared of the killings. However, the media attention caused him to have a nervous breakdown and he blamed a bar owner, Marty Sinclair, for the police investigation of him.