I'm not seeing anywhere in the article that was posted stating this was the first time he was interviewed by LE. As noted below, he clarified his timeline to investigators Friday morning when they met early Friday to go over his timeline in detail. I think it's highly unlikely that this gentleman being a city/county employee would have not notified LE immediately that he was on the premises of the school that morning. JMO
The article states...
A groundskeeper, who was mowing the soccer field at Skyline School the morning Kyron Horman disappeared, clarified his timeline to investigators Friday morning and it differs slightly from what he told a KATU News reporter earlier in the week.
He met with two detectives and a deputy district attorney at Skyline School early Friday to go over his timeline in detail.
Stensen told investigators that he left Skyline School as late as 8:45 a.m. or 9 a.m., which means he could have missed seeing the Horman truck being in the two spots investigators are interested in, especially since he spent his time and attention at the school mowing the soccer field.
Investigators say that puts him on the gravel road outside of the critical half-hour window they want to know about since they have witnesses who saw someone in or around the Hormans truck during that time.
Still, authorities said it was helpful to have spoken to Stensen in depth.