Texas school shooting: Suspect's grandmother upgraded to good condition
Twenty-one were killed and 17 were injured in last week's mass shooting.
A small town in rural Texas was left reeling after a gunman opened fire at an elementary school, killing 19 children.
Two teachers were also killed in the May 24 shooting at Robb Elementary School in Uvalde, according to authorities.
The alleged gunman -- identified by authorities as 18-year-old Salvador Ramos, a student at Uvalde High School -- was killed by law enforcement at the scene.
The suspect allegedly shot and injured his grandmother before opening fire at the school, officials said.
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Bidens to visit Texas in 'upcoming days' to meet with victims' families
President Joe Biden and first lady Jill Biden will be traveling to Texas in the "upcoming days," the president said Wednesday.
The two plan to meet with the victims' families "and let them know that we have a sense, just a sense of their pain. And hopefully bring some little comfort to the community in shock and grief and in trauma," the president said during an address Wednesday afternoon.
The president said he was "sick and tired" of the "carnage" that is happening in the U.S.
"The idea that an 18-year-old can walk into a store and buy weapons of war, designed and marketed to kill, is I think just wrong. Just violates common sense," he said. "Where's the backbone, where's the courage to stand up to a very powerful lobby?"
Accused shooter purchased guns at local store: Sources
The accused gunman in Tuesday's deadly school shooting purchased two AR-15-style rifles at Oasis Outback, a federally licensed store located in Uvalde, law enforcement sources told ABC News.
A general manager at Oasis Outback told ABC News that he is working with law enforcement but would not comment on whether the alleged shooter did or did not purchase his guns there.
Oasis Outback is located approximately 3 miles from Robb Elementary School.
According to the Bureau of Alcohol, Tobacco, Firearms and Explosives, the alleged shooter made his gun purchases on two separate days: May 17 and May 20. That means he bought the first AR-15-style rifle one day after he turned 18 and the second four days before the shooting.
Both weapons were purchased at that same store, Steve McCraw, the director of the Texas Department of Public Safety, confirmed during a press conference Wednesday afternoon.
The guns were purchased legally.
-ABC News' Josh Margolin, Aaron Katersky, Laura Romero and Olivia Rubin
Rep. Hoyer to bring 'red flag' bill to House floor next month
The House will move on a bill to create a national red flag law, according to House Majority Leader Steny Hoyer, D-Maryland.
The bill would allow family members or law enforcement officers to "petition for an extreme risk protection order with respect to an individual who poses a risk to themselves or others."
The bill is sponsored by Rep. Lucy McBath, D-Ga., whose 17-year-old son Jordan Davis was fatally shot in 2012.
Hoyer said on Twitter Wednesday that he plans to bring the bill to the floor when the House returns from recess next month.
-ABC News' Lalee Ibssa
Gunman warned about shooting in Facebook messages minutes beforehand, Meta says
The gunman warned about the shooting in private messages on Facebook minutes beforehand, a spokesperson for Meta said Wednesday. The warning on Facebook was made in "private one-to-one text messages that were discovered after the terrible tragedy occurred."
The gunman sent three messages on Facebook about 30 minutes before the shooting saying: "I'm going to shoot my grandmother," "I shot my grandmother" and "I'm going to shoot an elementary school," Texas Gov. Greg Abbott said at a press conference.
Abbott said the suspect was reportedly a high school dropout. Officials have reportedly not identified a criminal history for the suspect, but Abbott said he may have had a juvenile record, but that is yet to be determined.
Abbott said the suspect did not have a known mental health history.
According to the ATF, the shooter made his gun purchases on two separate days: May 17 and May 20.
Bidens attend Mass in Uvalde
As President Joe Biden left Mass at a Catholic Church in Uvalde, Texas, on Sunday afternoon, he walked over to a crowed of people outside chanting, "Do something."
Biden looked at the crowd and mouthed the words, "We will."
Biden and first lady Jill Biden attended Mass at Sacred Heart Catholic Church. As they entered the sanctuary, Jill Biden reached out and lightly touched the hands of several people seated along the aisle as she and the president made their way to their seat in the first-row pew.
About 600 people attended the service.
The president and first lady were greeted at the church by Archbishop Gustavo Garcia-Siller, according to the White House.
“In the midst of collapse and devastation, we have come once more to this our house. To pray. And to be together," one of the service leaders said as the Mass got underway.
Garcia-Siller invited children to come to the front of the church and sit.
"They passed away. But you are alive," the archbishop told the children, referring to the 19 students and two teachers killed in the attack at Robb Elementary School on Tuesday.
Garcia-Siller told the children that he believes they will help the community heal. He noted how Jesus died and “rose from the dead," and then went to heaven.
“He prepared a place for the 19 little ones we lost,” the archbishop said.
The archbishop said he has experienced the goodness of people in the wake of the horrific tragedy. He reflected on Jesus’ message of peace, saying, Jesus felt fear and pain, but did not become bitter.
Garcia-Siller spoke of the joy of heaven.
“Our children in Uvalde who left us already join in this joy," he said. “Heaven is open for all."