As Hollywood mourns the loss of Catherine O'Hara, fans of the Home Alone star are looking back at how the late actress discussed the most important role of her life - mom. "I'm proud to say, we all make each other laugh," O'Hara told the Toronto Star in 2007 of life with her sons Matthew and Luke, who she shared with her husband, Bo Welch. "In my home, growing up - I learned that from my parents," she continued at the time. "They made each other laugh to the end, God bless 'em. How great is that?" She added of her sons, "They're very funny, and we encourage it.