Updated 09/19/16 at 04:56:05 p.m.

Police arrested a 21-year-old Arvada man on Saturday afternoon on a charge of threatening the lives of state Sen. Laura Woods and her family in an electronic message.

Dylan Seila Hopkins stands accused of sending an alarming Facebook message to Woods, an Arvada Republican, on Saturday morning warning that he would “grant you and your family a Bullet straight to the head!” if the lawmaker came to Arvada, which she has represented in the Legislature for two years. “Do us a favor and Kill Yourself Laura!” read the message, which is riddled with randomly capitalized words and misspellings.

“I was stunned. I was shocked. I was appalled and then terrified,” Woods told The Colorado Statesman. “I’d never seen anything like it before.”

The Secret Service is also investigating Hopkins for a social media post about the possibility of shooting GOP presidential nominee Donald Trump, The Colorado Statesman has learned.

“Let’s take away Donald Trump’s Secret Service detail and see what happens to him!” reads a post that appears on Hopkins’s Facebook page with a time-stamp of 7:27 a.m. on Saturday. The post was linked to a video showing Trump using similar language a day earlier about Democratic nominee Hillary Clinton.

Trump landed in the state on Saturday evening to attend a campaign rally in Colorado Springs, roughly four hours after Arvada police arrested Hopkins at his parents’ home. The Colorado State Patrol, which protects lawmakers and others at the state Capitol, assisted in the investigation.

The Denver field office of the Secret Service and a spokesman for the United States Attorney’s Office for the District of Colorado didn’t immediately respond to inquires.

When first questioned, Hopkins told police his account must have been hacked, according to a source close to the investigation.

“I was much relieved last night when I found out he had been arrested and put in jail,” Woods said on Sunday afternoon. “That allowed me to get a good night’s sleep and have some level of confidence that my daughters-in-law, my husband and son and I, my grandchildren, my campaign volunteers are safe. It’s just the kind of fear nobody should have to live with.”

Woods said she was terrified when she received the message, which arrived via the social networking site’s Messenger app while she was attending a town hall meeting. Almost immediately, she said, she focused on protecting herself, her family and her campaign workers.

“At first it was disbelief and it moved quickly into fear, that sort of gut-wrenching, ‘What do I do with this?’ thought,” she said. “I’m not accustomed to being a victim, and I felt very much like a credible, serious threat had been made against my own life and the lives of my loved ones and my campaign volunteers. I had to switch from being terrified to, ‘What do we do, how do I protect these people I care so much about?'”

Woods said she’d received a similar, although less graphic message urging her to kill herself about 10 minutes earlier in response to a Facebook ad her campaign has been running and deleted it, but then the plainly threatening one showed up.

“You’re such a hateful Tramp Laura!” the message began. “Since your a Republican and love guns so much, than maybe we should shoot you and that Ugly ass family of yours straight in the face!” The message ended with several hashtagged phrases, including “#KillYourself” and “#BulletToTheFace,” along with a profanity attached to Trump’s name.

Hopkins didn’t look familiar to Woods when she saw the profile picture that accompanied the message.

Woods said the threat made her fear for the safety of her supporters, including volunteers whose young children accompany them when they campaign door-to-door on her behalf throughout the district.

“My heart nearly stopped to think about them knocking on that door,” she said. “Nobody should have to live in that kind of fear.”

In response to the threat, she said campaign volunteers walked in pairs and that none of the moms with young children went out walking on Saturday. Woods said she plans to convene a campaign meeting on Monday and discuss what to do going forward.

“I’m going to see what happens then, if he’s back out on the streets, you can bet that I’m going to be vigilant, noticing my surroundings,” Woods said. “I will advise my daughters-in-law if they’re out with my sweet little granddaughters to be very vigilant.” She said campaign workers will have to be more alert. “I’ve been knocking doors by myself. It doesn’t bother me, I go do that. That may end, it may,” she added.

“Everyone’s fine,” Woods stressed. “Everyone is fine – my campaign volunteers and my family, and I think that’s important. And I’m thankful for the Colorado State Patrol and the Arvada Police.”

On Monday, a Jefferson County judge set a personal recognizance bond for Hopkins, which one of his parents must co-sign, and issued a protective order forbidding the suspect from having any contact with Woods. His arraignment was continued to Oct. 12. Hopkins didn’t respond to a request for an interview with The Statesman.

Woods is locked in what could be the most competitive state Senate race in Colorado, in a rematch with former state Sen. Rachel Zenzinger, the Democrat Woods unseated in 2014 by just 663 votes. Zenzinger was appointed to fill a vacancy a year earlier created when state Sen. Evie Hudak, another Arvada Democrat, resigned in the face of a recall effort organized, in part, by Woods.