Presidential hopeful Amy Klobuchar says in an interview on Fox she was unaware of questionable tactics that sent a black Minnesota youth to prison for life when she was a top prosecutor. The interview follows an Associated Press investigation shows that Myon Burrell, now 33, may have been wrongfully convicted of murder based on questionable evidence and jailhouse informants who said they were coached or coerced.  Klobuchar says she did not know about evidence uncovered by the AP until she saw the investigation. But an AP review shows that her office would have had access to the same information during the time it was prosecuting Burrell for the murder of an 11-year old girl in 2002.