The OHSU student community took part in the National School Walkout, April 20, 2018, marking the 19th anniversary of the Columbine shooting. The event, organized by OHSU Students Against Gun Violence, called for stricter gun laws and safer communities. (OHSU/Kristyna Wentz-Graff)

The OHSU student community held a rally as part of a National School Walkout, April 20, 2018. The event marked the 19th anniversary of the Columbine shooting and was one of over 2,000 actions planned nationwide. (OHSU/Kristyna Wentz-Graff)

Orange flags represent each of the 513 Oregonians who died of gun-related deaths in 2016. (OHSU/Kristyna Wentz-Graff)

Ximena Levander, M.D., attends the National School Walkout event at OHSU, April 20, 2018. The event, held on the 19th anniversary of the Columbine shooting, called for stricter gun laws and safer communities. (OHSU/Kristyna Wentz-Graff)

Kalisha Bonds, a psychiatric mental health nurse practitioner and Ph.D. student in the OHSU School of Nursing, speaks at the event. (OHSU/Kristyna Wentz-Graff)

Photos of those who died from gun violence were incorporated into an interactive art project, as the OHSU student community took part in the National School Walkout, April 20, 2018 in Portland. (OHSU/Kristyna Wentz-Graff)

Photos of those who died from gun violence were incorporated into an interactive art project, as the OHSU student community took part in the National School Walkout, April 20, 2018 in Portland. (OHSU/Kristyna Wentz-Graff)

Esther Choo, M.D., M.P.H., wipes away tears as she speaks anti gun-violence rally held at OHSU, April 20, 2018. Choo emphasized the importance of grassroots and public health efforts. The event was organized by the OHSU Students Against Gun Violence, and was one of over 2,000 events planned nationwide. (OHSU/Kristyna Wentz-Graff)

(Left to right) OHSU medical students Kelsey Priest, Jay Ruby and Shira Einstein attend an anti gun-violence rally held at OHSU, April 20, 2018. The event was organized by the OHSU Students Against Gun Violence, and was one of over 2,000 events planned nationwide. (OHSU/Kristyna Wentz-Graff)

Shana Kusin, M.D., speaks about secondary provider trauma during an anti gun-violence rally held at OHSU, April 20, 2018. The event was organized by the OHSU Students Against Gun Violence, and was one of over 2,000 events planned nationwide. (OHSU/Kristyna Wentz-Graff)

Art displayed at an anti gun-violence rally held at OHSU, April 20, 2018. The event was organized by the OHSU Students Against Gun Violence, and was one of over 2,000 events planned nationwide. (OHSU/Kristyna Wentz-Graff)

Art displayed at an anti gun-violence rally held at OHSU, April 20, 2018. The event was organized by the OHSU Students Against Gun Violence, and was one of over 2,000 events planned nationwide. (OHSU/Kristyna Wentz-Graff)

Students and allies attending an anti gun-violence rally held at OHSU, April 20, 2018, were encouraged write letters to representatives, participate in interactive art, and get involved in gun violence prevention. The event was organized by the OHSU Students Against Gun Violence, and was one of over 2,000 events planned nationwide. (OHSU/Kristyna Wentz-Graff)

Students and allies attending an anti gun-violence rally held at OHSU, April 20, 2018, were encouraged write letters to representatives, participate in interactive art, and get involved in gun violence prevention. The event was organized by the OHSU Students Against Gun Violence, and was one of over 2,000 events planned nationwide. (OHSU/Kristyna Wentz-Graff)

Community activist Teressa Raiford speaks at an anti gun-violence rally held at OHSU, April 20, 2018, at OHSU. Raiford leads Portland's Black Lives Matter movement, taking part in anti-violence activisim after her nephew was shot outside of a nightclub in 2010. (OHSU/Kristyna Wentz-Graff)

Community activist Teressa Raiford speaks at an anti gun-violence rally held at OHSU, April 20, 2018, at OHSU. Raiford leads Portland's Black Lives Matter movement, taking part in anti-violence activisim after her nephew was shot outside of a nightclub in 2010. (OHSU/Kristyna Wentz-Graff)