A gunman stormed into a Colorado Springs Planned Parenthood on Friday afternoon armed with an assault rifle and began shooting. A police officer and two others were killed, with nine more wounded, in the ensuing five-hour standoff that ended with the shooter in custody.

Police named Robert Lewis Dear, 57, as the suspect Saturday morning. Wearing a trench coat and a bushy white beard, Dear allegedly traded fire with police for hours before officers convinced him to surrender. The attack’s motivations are unknown, but Colorado Springs Mayor John Suthers said people can make “inferences from where [the attack] took place, suggesting a religious or anti-abortion motive.

Dear currently lives in Hartsel, Colorado, about an hour’s drive from Colorado Springs, but lived for much longer in North and South Carolina. He spent part of that time living in a remote mountain shack in Black Mountain, North Carolina, where neighbors describe him as a quiet loner with no known religious affiliation, according to the AP.

If Planned Parenthood was the target, it wouldn’t be the first time an organization that provides reproductive health care had come under attack. The Colorado Springs clinic was aware enough of security threats to reportedly have a “safe room” on site equipped with bullet-proof vests. Friday’s shooting comes after a heated national debate over efforts in Congress to defund the group, catalyzed by a series of videos from earlier this year showing Planned Parenthood officials discussing using fetal tissue for research.

Suspect confirmed as Robert L. Dear date of birth of 4/16/1958 pic.twitter.com/4v2GtIsUgT — Springs Police (@CSPDPIO) November 28, 2015

The police officer killed has been identified as 44-year-old Garrett Swasey, a campus officer with the University of Colorado Colorado Springs. Swasey was a 6-year veteran of the force and a married father of two. He was an ice-skating champion and one of the pastors at his church. Four other police officers were injured.

President Obama released a statement on the shooting, urging Americans not to let such tragedies “become normal.”

“The last thing Americans should have to do, over the holidays or any day, is comfort the families of people killed by gun violence — people who woke up in the morning and bid their loved ones goodbye with no idea it would be for the last time,” Obama said. “And yet, two days after Thanksgiving that’s what we are forced to do again.”

The shooting began at around 11:30 am local time at a busy commercial area in Colorado Springs, crowded with Black Friday shoppers. People took shelter in neighboring shops and their cars when gunshots began to ring out. Police, SWAT teams and FBI swarmed the Planned Parenthood, exchanging fire with the shooter for hours. At around 5:00 pm local time, police were able to shout to the gunman and convince him to give himself up.

Many people on Twitter responded to the news by calling for donations to the health provider. They were led by model Chrissy Teigen, who tweeted, referring to her husband, the musician John Legend, “Every time shit like this happens, john and I immediately make another donation to planned parenthood.”

If you can, please donate to Planned Parenthood. Access to contraception, healthcare & abortion should not be held hostage by terrorism. — Kayleigh Anne (@Ceilidhann) November 27, 2015

Everybody's already spending money today, so why not donate to Planned Parenthood while you're at it: https://t.co/H4cZIdrzYJ — Anne T. Donahue (@annetdonahue) November 27, 2015

Planned Parenthood Rocky Mountain issued a statement saying its top priority is the safety of its patients and staff, and said “we share the concern of many that extremists are creating a poisonous environment that feeds domestic terrorism in this country.”

We will never back away from providing care in a safe, supportive environment that millions of people rely on and trust. — Cecile Richards (@CecileRichards) November 27, 2015

This story was originally published on November 27 and has been updated as news emerges.