According to the charges filed against him, Arnold was dating a Snohomish County sheriff’s deputy until she broke up with him in January. They continued to text each other about the relationship and subsequent break up for a couple weeks before she told him in early February to leave her alone, the charges say.
On Valentine’s Day, Arnold texted the woman and made a comment about her going on a date with someone new, and she in turn blocked Arnold’s phone number, charging papers say.
Two days later, the woman found a typed, two-page letter taped to her front door that referenced her relationship with Arnold and was signed, “You know who it is,” according to the charges. She reviewed footage from her front door camera and saw Arnold, armed and in uniform, drive to her home in his patrol vehicle and tape the letter to her door, the charges say.
Seeing the footage made her “very uncomfortable” because Arnold had previously told her “he would kill anyone who took his law enforcement career from him,” charging papers say.