The gunman's grandmother, who was shot by the suspect just before the school shooting, has been upgraded to good condition, University Health said Tuesday.

Even though Congress is on recess, a small group of bipartisan senators will meet by Zoom Tuesday afternoon to speak about gun control, multiple sources told ABC News.

The meeting is expected to include Sen. Chris Murphy, D-Conn.; Sen. John Cornyn, R-Texas; Sen. Tom Tillis, R-N.C.; and Sen. Kyrsten Sinema, D-Ariz.

The meeting is not expected to include every senator who is part of the bipartisan talks. Discussion with the larger group is expected later this week.

-ABC News' Rachel Scott and Allie Pecorin

President Joe Biden said to reporters Tuesday: "I will meet with the Congress on guns." Biden didn’t provide more details or say when the meeting would happen.

Biden addressed his visit to Uvalde, saying, "I was down in Texas and people sat in a room, about 250 of them in a large room with me for almost four hours, nobody left ... until I spoke to every single person in that room. Every single person. They waited to the very end."

-ABC News' Ben Gittleson

The Uvalde City Council meeting scheduled for Tuesday has been canceled so community members can continue to grieve, Uvalde Mayor Don McLaughlin announced.

"Our focus on Tuesday is on our families who lost loved ones," McLaughlin said in a statement Monday. "We begin burying our children tomorrow, the innocent victims of last week’s murder at Robb Elementary School."

McLaughlin reiterated that the investigation into the shooting is being conducted by the Texas Department of Public Safety, saying that statements made by Texas Lt. Gov. Dan Patrick on Saturday that he was "not told the truth" about the timeline of events during the shooting are not true.

"Local law enforcement has not made any public comments about the specifics of the investigation into the incident or mislead anyone," McLaughlin said.

McLaughlin also thanked the U.S. Department of Justice for accepting his request to conduct an independent review of law enforcement’s response to the mass shooting, adding that the families of the victims “deserve answers, and the truth will be told.”

-ABC News' Jenna Harrison

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."