Complex sentence: Perhaps sparked by her "girl next door" charisma, there is considerable Web speculation over her true name and origin, and there has been circulation of a photograph purported to be from her high school yearbook.
Split into simpler sentences: Perhaps sparked by her "girl next door" charisma, there is considerable Web speculation over her true name and origin. There has also been Internet circulation of a photograph purported to be from her high school yearbook.