Complex sentence: The hobo stumbles across Abby as she is trying to conduct business and frightens away her John, she sees the state he is in and takes him to her apartment to tend to his wounds.
Split into simpler sentences: The Hobo stumbles across Abby as she is trying to conduct business and frightens away her John. Seeing the state he is in, Abby takes the Hobo to her apartment to tend to his wounds.