We have new information about the Saginaw man charged with stabbing four people aboard an Amtrak train in Niles. 44 year-old Michael Williams had delusions at one time and spent time in jail for attacking a girlfriend. The Saginaw News also reports Williams' family had petitioned a court to get him mental health treatment. Records show Wanda Williams wrote in 2005 that her nephew “began saying people were following him, people were under the house and jumping out of windows and no one else can see them.” Two doctors later saw him. One wrote that Williams was having paranoid delusions due to cocaine use. The second doctor wrote that he had acute psychosis, saying he used cocaine and developed hallucinations and delusions.