txinvestigator
TGT Addict
"...or was attempting to enter" is the key phrase there. She had no idea what his intentions were, just that he was trying to get her door open to get to her. Sounds fairly cut and dried to me, and it sounds like the witnesses who were on the scene corroborated her story.
Playing the devils advocate; sounds like the Grand Jury learned more evidence that gave rise to probable cause.