WARNING: This article contains descriptions of domestic violence, murder and suicide.

Friends and family are mourning five people killed in a mass shooting near Forest Grove that claimed the lives of three generations of one family and two others who authorities say arrived at the property to check on loved ones.

The victims were identified as 60-year-old Rowan Kimsey; her child, 26-year-old Stella Kimsey; Stella's grandmother, Mary Kimsey; Stella's best friend, Linsey Haraldsen; and Haraldsen's partner, Alvin Chu.

According to the Washington County Sheriff's Office, investigators believe 36-year-old Benjamin Parker shot and killed all five victims at the family's rural property before killing several pets, setting the property on fire and fleeing the area.

Detectives said the violence began Friday night after an argument between Parker and Stella Kimsey. Investigators said Stella told Parker he had to leave the property. When Rowan Kimsey went to check on Stella, Parker shot and killed her, authorities said. Later, investigators said Haraldsen, Chu and Mary Kimsey arrived at the property to check on the family. Detectives believe Parker then shot and killed all three.

Detectives said Parker later drove to Enumclaw, Washington, where he died by suicide on Sunday.

Washington County Sheriff's detective Mark Povolny said investigators learned that family members had previously expressed concerns about Parker's behavior.

"Mary had previously told her friend that Mr. Parker would argue with Stella and could get very upset," Povolny said during a news briefing Tuesday.

Parker's father, Gary Rogers, provided a statement to KGW expressing sorrow over the killings.

"Please let your viewers know how immensely sorry I am for the heinous acts committed by my son. You can imagine it's tearing me up inside," said Rogers.

Among the victims remembered fondly by friends was Rowan Kimsey, an artist, tattooist and caretaker whose impact stretched far beyond her family's farm.

Laura Richards, who shared salon space with Kimsey for seven years in Portland's Montavilla neighborhood, described her friend as a compassionate and creative presence.

"The way she walked through this world was pure magic," Richards said.

Richards worked as a hairstylist at Side Salon while Kimsey operated Lucky Mermaid Tattoo from the same building. A mural of a merman painted by Kimsey remains on the exterior of the business and has become a recognizable feature in the neighborhood. Richards said Kimsey's generosity and devotion to others defined her life.

"In my opinion, if you were lucky enough to be in her orbit, your life was always for the better," she said. "She just took care of people."

Investigators said toxicology results for Parker are still pending. The Kimsey family has asked the public to extend compassion to Parker's family as they cope with the aftermath of the tragedy.

Authorities also said surviving livestock rescued from the farm have been relocated to other homes, a decision loved ones said the Kimseys would have supported.

If you or someone you know have experienced domestic violence and need support, help is available.

National Domestic Violence Hotline: 1-800-799-7233 or text START to 88788

Love is Respect Hotline (for youth): 866-331-9474 or text LOVEIS to 22522

Call to Safety (local 24/7 crisis line): 503-235-5333

UNICA (local 24/7 Spanish language crisis line): 503-232-4448

The Gateway Center (Multnomah County): 503-988-6400

If you or someone you know is struggling with thoughts of suicide and need support, help is available.

National Suicide Prevention Hotline: Call or text 988, open 24/7

National Alliance on Mental Illness: 1-800-950-6264 or text NAMI to 741741

The Oregon Youth Line: 877-968-8491

Military Helpline: 888-457-4838

Lifeworks NW: 971-244-4635, available nights and weekends

Crisis Text Line: Text HELLO to 741-741 for free, 24-hour support

OHSU Department of Psychiatry: https://www.ohsu.edu/school-of-medicine/psychiatry/suicide-prevention