A Milwaukee man attacked his mother one day before his alleged sexual assault on a female postal worker was thwarted by a witness' gunshot, the man's mother said Sunday. Simone Pierce said her son, Lyndon Jackson, lives with mental illness and needs longterm impatient care. Subscribe to WISN on YouTube for more: http://bit.ly/1emE5YX Get more Milwaukee news: http://www.wisn.com/ Like us: / wisn12 Follow us: / wisn12news