<sod >Scot Peterson, who was a school resource officer at the time of the shooting, was the first person to respond to the shooting.< eod>< sod > Scot Peterson, who was a school resource officer atÂ MarjoryÂ StonemanÂ Douglas High SchoolÂ in Parkland at the time of the shooting, was the first person to respond to the incident.< eod>