Security cameras would have helped Patterson

Mr. Patterson's father-in-law, Harry Masters, took Mr. Patterson to the Federal building to meet with a man named Thaddeus Burns. Later, Mr. Masters denied having ever taken Mr. Patterson to the Federal building. If security cameras had been as widely used back then as today, then Mr. Patterson could have no doubt proven that Mr. Masters took him there with video evidence. This would cast doubt on Mr. Masters and possibly help with proving Mr. Patterson's claim that there was a Brotherhood.