KREM-TV reports 18-year-old Joseph Gillies of Tacoma appeared in court Thursday in Whitman County. He was released from jail until his next court appearance at the end of the month.
Gillies is accused of shooting a woman with a blow dart Jan. 12 on the Washington State University campus. He's also accused of hitting a man with a dart two days later while walking in Pullman.
Police say they suspect Gillies of several similar blow dart assaults in Ellensburg.
Gillies told KREM he's sorry for the dart attacks but offered no explanation other than saying, "I'm a moron."
Tips and surveillance video led to Gillies' arrest Wednesday in Ellensburg.
No serious injuries were reported.