One of the two victims said she was knocked unconscious.
A panhandler grew combative and punched the owner after he was asked to the 38th Street restaurant, witnesses said.
Each single-family home on property adjacent to the Nickel Plate Trail is eligible to apply for up to $2,000 in grant money for screening, privacy or buffering improvements.
Administrators discussed proposed changes to a controversial "Parent Code of Conduct" during Tuesday's board meeting.
The incident was described as isolated. No threat to the public exists, police said.
A Zionsville boy credited with preventing tragedy said lessons from local heroes inspired his quick actions.