grammatical interpretation of law

Is the following law saying that the COMMUNICATION has to occur in one of the three locations mentioned or that the HARM has to be planned for one of the locations? Note the placement of the commas in the first part of the law.

Va. Code 18.2-60 subsection A2

"Any person who communicates a threat, in a writing, including an electronically transmitted communication producing a visual or electronic message, to kill or do bodily harm, (i)on the grounds or premises of any elementary, middle or secondary school property, (ii) at any elementary, middle or secondary school-sponsored event or (iii) on a school bus to any person or persons, regardless of whether the person who is the object of the threat actually receives the threat, and the threat would pace the person who is the object of the threat in reasonable apprehension of death or bodily harm, is guilty of a Class 6 felony."

Thanks,
Laura