A teenager who was part of a group of young people trying to start fights and harassing people at the Holland Happening celebration in Oak Harbor led police on a short foot pursuit downtown on April 29, according to court documents.

Police later arrested the suspect, 18-year-old Byron Aills, during a stakeout of a trailer home where he has been living, police reports state. Aills allegedly tried to escape out a window but was caught, documents state.

Aills appeared in Island County Superior Court May 2. The judge set his bail at $10,000.

Prosecutors charged Aills in Island County Superior Court May 3 with intimidating a witness, harassment, obstructing a law enforcement officer and disorderly conduct. If convicted of the charges, he would face up to a year and eight months in prison under the standard sentencing range.

After the Holland Happening parade was over Saturday, Oak Harbor police responded to an area of festival food vendors because of a report that a group of juveniles were being aggressive toward patrons. The police report states that Aills was part of a group of four young people who harassed a group of African American teenagers.

Aills made “hand gestures,” including an imitation of someone eating a bowl of cereal, as he followed the teenagers, a witness told police.

During the incident, Aills allegedly threatened and tried to intimidate a young man whom Aills allegedly assaulted last year, court documents state.

In addition, Aills was allegedly seen “getting into people’s faces” and daring them to hit him; he told a woman who tried to intervene that he wasn’t afraid to hit women, and he knocked a phone out of the hand of a man who was trying to get a photo of the group, an officer wrote.

An officer detained one member of the group, a 14-year-old boy, after seeing him give an adult “the middle finger” and walk aggressively toward a patron. The officers also tried to detain Aills, but he fled on foot, an officer wrote. Officers ran after him briefly, the report states, but Aills got away.

A couple of days later, officers went to the trailer home where they believed Aills was living, but a resident denied he was present. Investigators, however, were concerned that Aills’ behavior was escalating and set up surveillance on the home. An officer arrested the young man after he allegedly left the home through a back window, a report states.

Last year, Aills was convicted in juvenile court of assault in the second degree and was sentenced to 15 weeks of confinement, court document state. He was part of a group of juveniles who attacked a young man, leaving him with a dislocated shoulder and a head laceration.