Complex sentence: DeBardeleben asked to be allowed to represent himself at his trials, which were held in various jurisdictions & earned the respect of FBI profilers because he never gave himself away in unguarded moments, nor bragged about his exploits.
Split into simpler sentences: DeBardeleben asked to be allowed to represent himself at his trials, which were held in various jurisdictions. He earned the respect of FBI profilers because he never gave himself away in unguarded moments, nor bragged about his exploits.