Twenty-one-year-old Kai Christensen was also ordered Wednesday to complete 18 months of probation. That's longer than the 20 days in jail and one year of probation that his 20-year-old co-defendant Benjamin Rutkowski got.
U.S. Forest Service officers say Christensen and Rutkowski set the traps in May along a canyon trail near Provo. One was rigged to send a 20-pound, spiked boulder swinging at head level. The other aimed to trip a passer-by into a bed of sharpened wooden stakes.
They pleaded guilty to misdemeanor reckless endangerment.
Rutkowski's attorney, Richard Gale, tells The Salt Lake Tribune the two were "just a couple of boys messing around."
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