A jury could decide Friday whether a Sun Prairie woman was distracted by writing a text message before she struck and killed a UW-Madison student at his disabled car on an East Side street in 2010. Testimony in the case of Stephanie Kanoff, 21, who is charged with homicide by negligent driving, will wrap up Friday as Kanoff?s lawyers try to convince a jury that she was not writing a text message while driving before she struck Dylan Ellefson, 21.