A memorial honoring the 10 people who were killed during a shooting at a Texas high school in 2018 was unveiled on Tuesday, the third anniversary of the deadly incident.

On May 18, 2018, eight students and two teachers were killed at Santa Fe High School, when another student opened fire inside the campus about 55 miles (88 kilometers) southeast of Houston. Thirteen other people were wounded in the shooting.

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Ten feathers representing the ten victims of the 2018 Santa Fe school shooting sit on a newly dedicated memorial , Tuesday, May 18, 2021, outside of the high school in Santa Fe. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

A memorial honoring the 10 people who were killed during a shooting at a Texas high school in 2018 was unveiled on Tuesday, the third anniversary of the deadly incident.

Chailyn Gillespie, who is graduating from Santa Fe High School this year, hugs a friend next to the new memorial to the ten victims of the 2018 shooting at the high school, following a dedication ceremony, Tuesday, May 18, 2021, outside of the high school in Santa Fe. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

The empty chair’s exaggerated height “re-enforces the concept that the chair will never be filled and will sit in commemoration of those lost too soon,” according to a foundation of current and former students as well as parents and community members behind the memorial.

Morgan Wilson, who will graduate from Santa Fe High School this month, adjusts the ten feathers representing the ten victims of the 2018 Santa Fe school shooting where they sit on a new memorial, Tuesday, May 18, 2021, outside of the high school in Santa Fe, Texas. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

The chair, which will sit outside on the campus, was set to be part of larger memorial comprised of a meditative grove and 10 concrete, feather-shaped monoliths for each victim. The foundation is still raising funds for the larger memorial.

Gail McLeod, mother of Kyle McLeod, looks at a memorial in honor of the victims, including her son, in the 2018 school shoot at Santa Fe High School on Sunday, May 16, 2021. May 18 marks the third year anniversary of the deadly shooting at the school. (Elizabeth ConleyHouston Chronicle via AP)

Gail McLeod, mother of Kyle McLeod, looks at a memorial in honor of the victims, including her son, in the 2018 school shoot at Santa Fe High School on Sunday, May 16, 2021. May 18 marks the third year anniversary of the deadly shooting at the school. (Elizabeth ConleyHouston Chronicle via AP)

Megan Grove, the chair of the Santa Fe Ten Memorial Foundation, takes a picture of current and former students around the new memorial to the ten victims of the 2018 mass shooting at the high school following a dedication ceremony, Tuesday, May 18, 2021, outside of the high school in Santa Fe, Texas. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

Megan Grove, the chair of the Santa Fe Ten Memorial Foundation, takes a picture of current and former students around the new memorial to the ten victims of the 2018 mass shooting at the high school following a dedication ceremony, Tuesday, May 18, 2021, outside of the high school in Santa Fe, Texas. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

The memorial, called “the Unfillable Chair,” is comprised of an aluminum chair that stands 8 feet (2.44 meters) tall, with the empty seat being 4 feet (1.22 meters) wide by 3 feet (0.91 meters) deep. The names of the victims are displayed on the front of the chair.

Ten feathers representing the ten victims of the 2018 Santa Fe school shooting sit on a newly dedicated memorial , Tuesday, May 18, 2021, outside of the high school in Santa Fe. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

Ten feathers representing the ten victims of the 2018 Santa Fe school shooting sit on a newly dedicated memorial , Tuesday, May 18, 2021, outside of the high school in Santa Fe. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

The empty chair’s exaggerated height “re-enforces the concept that the chair will never be filled and will sit in commemoration of those lost too soon,” according to a foundation of current and former students as well as parents and community members behind the memorial.

The chair was designed by a group of five current and former students.

During a ceremony at the high school on Tuesday, Reagan Gaona, one of the chair’s student designers who graduated last year, said while the 10 victims are “no longer... with us, we’ll always have a place for them in our hearts.”

Chailyn Gillespie, who is graduating from Santa Fe High School this year, hugs a friend next to the new memorial to the ten victims of the 2018 shooting at the high school, following a dedication ceremony, Tuesday, May 18, 2021, outside of the high school in Santa Fe. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

Chailyn Gillespie, who is graduating from Santa Fe High School this year, hugs a friend next to the new memorial to the ten victims of the 2018 shooting at the high school, following a dedication ceremony, Tuesday, May 18, 2021, outside of the high school in Santa Fe. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

The chair, which will sit outside on the campus, was set to be part of larger memorial comprised of a meditative grove and 10 concrete, feather-shaped monoliths for each victim. The foundation is still raising funds for the larger memorial.

The former student accused in the shooting, 20-year-old Dimitrios Pagourtzis, has been receiving mental health treatment at the North Texas State Hospital in Vernon since early December 2019. Doctors say Pagourtzis remains incompetent to stand trial on state charges.

Pagourtzis also faces federal charges in a sealed criminal case.

Morgan Wilson, who will graduate from Santa Fe High School this month, adjusts the ten feathers representing the ten victims of the 2018 Santa Fe school shooting where they sit on a new memorial, Tuesday, May 18, 2021, outside of the high school in Santa Fe, Texas. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

Morgan Wilson, who will graduate from Santa Fe High School this month, adjusts the ten feathers representing the ten victims of the 2018 Santa Fe school shooting where they sit on a new memorial, Tuesday, May 18, 2021, outside of the high school in Santa Fe, Texas. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

Gail McLeod, mother of Kyle McLeod, looks at a memorial in honor of the victims, including her son, in the 2018 school shoot at Santa Fe High School on Sunday, May 16, 2021. May 18 marks the third year anniversary of the deadly shooting at the school. (Elizabeth ConleyHouston Chronicle via AP)

Gail McLeod, mother of Kyle McLeod, looks at a memorial in honor of the victims, including her son, in the 2018 school shoot at Santa Fe High School on Sunday, May 16, 2021. May 18 marks the third year anniversary of the deadly shooting at the school. (Elizabeth ConleyHouston Chronicle via AP)

Megan Grove, the chair of the Santa Fe Ten Memorial Foundation, takes a picture of current and former students around the new memorial to the ten victims of the 2018 mass shooting at the high school following a dedication ceremony, Tuesday, May 18, 2021, outside of the high school in Santa Fe, Texas. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)

Megan Grove, the chair of the Santa Fe Ten Memorial Foundation, takes a picture of current and former students around the new memorial to the ten victims of the 2018 mass shooting at the high school following a dedication ceremony, Tuesday, May 18, 2021, outside of the high school in Santa Fe, Texas. The Santa Fe Ten Memorial Foundation unveiled the "Unfillable Chair," a student designed memorial, on the third anniversary of the shooting. The foundation is planning a larger memorial for the future. (Mark MulliganHouston Chronicle via AP)