June 12 (UPI) — Orlando and St. Petersburg in Florida are remembering the victims of the Pulse nightclub shooting 10 years ago Friday, one of the deadliest in history.

Orlando City Hall is displaying portraits of the 49 victims of Omar Seddique Mateen, 29, the man who opened fire at the gay nightclub in the city. Mateen was killed on the scene after a standoff. He had called 911 before the shooting to align himself with the Islamic State. More than 50 others were also injured in the shooting.

The portraits, originally part of a traveling memorial, were drawn by a local artist, and family members and volunteers filled in the color — only shades of black, white and gray — with paint-by-numbers kits. More than 1,000 people contributed to the paintings, some of which were intentionally left incomplete by family members. The exhibit opened at 9 a.m. EDT Friday.

The city will also have an official remembrance ceremony at First United Methodist Church, with musical performances and a candlelight ceremony in which the names of the victims will be read.

There will also be an event called Pulse 10: El Baquiné for the Angels Friday evening at Spirit of Joy Church, with remarks by former Congresswoman Gabby Giffords, a gun-safety advocate who was shot in the head in 2011 at a campaign event.

St. Petersburg will also gather to commemorate the event at 2 p.m. Friday at Central Avenue and 25th Street, the location of the former site of the Progressive Rainbow Street Mural. The mural was painted over last summer by the state but is still an important site to the local gay community.

“This impacted the entire country, the gay community, the LGBTQIA community, their friends, their allies, and people who love and support them,” Rob Hall, who plans to attend the ceremony, told Spectrum News 9 in St. Petersburg. “We want to show up and recognize them and carry on that love and support forever.”

But the event will also remind people to protect themselves.

“I think more than ever there’s this worry and this threat of what is going to happen next,” said Gabe Alvez, another attendee. “Bringing awareness that we have to be on alert and recognize situations that can bring great harm to our community is important.”