Laura Lynn said that she has had no contact with her 40-year-old son since she and his father Jesse Alvin Page divorced.
She said she was shocked and heartbroken after hearing about her son's death.
"He was such a precious little boy, that's all I can say, he was a very fun-loving, typical little boy. He was just a very soft spoken, gentle young man," she told Mail Online.
"... I'm devastated. My heart goes out to all the people who lost their loved ones, that's all I can say, I am so sorry."
Asked if the army had changed her son, she said: "I have no idea I had not been in contact with him that much. Actually in the last 12 years I have not been in contact with him at all since his dad and I divorced."
Wade Michael Page, a 'neo-Nazi', was dismissed from the army in 1998 after serving six years following a 'pattern of misconduct'.
Page, a "white supremacist" and a "skin head", had gunned down six people in the Milwaukee gurdwara, Wisconsin on Sunday.
Pictures show him heavily tattooed. His neighbours said he had a tattoo commemorating the September 11, 2001 terrorist attacks on his right arm, a common indicator of far-Right and anti-Muslim affiliations.
