Texas school shooting: Suspect's grandmother upgraded to good condition

Senate Majority Leader Chuck Schumer gave a passionate speech on the Senate floor Wednesday, calling gun violence “a plague upon this nation."

"The problem in the Senate is simple too many members on the other side of the aisle are disconnected from the suffering of the American people, too many members on that side care more about the NRA than they do about families who grieve victims of gun violence," Schumer said.

Schumer criticized Republicans for their opposition to gun control legislation.

"Republicans don't pretend that they support sensible gun safety legislation. They don't pretend to be moved by the fact that 90% of Americans, regardless of party, support something as common sense as background checks," Schumer said.

Schumer said he aches for the families of those killed in Texas and urged Republicans to act "for the sake of these children."

"To my Republican colleagues: Imagine if it happened to you. Imagine if this was your kid or your grandkid. How would you feel? Could you ever forgive yourself for not supporting a simple law that would make these mass shootings less likely? Please, please, please dammit. Put yourself in the shoes of these parents for once," Schumer said.

-ABC News' Trish Turner

Texas Gov. Greg Abbott will hold a press conference Wednesday at 1:30 p.m. ET to discuss the state's response to the Robb Elementary School shooting.

The governor will be joined by state officials including Lt. Gov. Dan Patrick, Texas state House Speaker Dade Phelan, U.S. Sens. John Cornyn and Ted Cruz and U.S. Rep. Tony Gonzalez.

Rolando Reyes, 72, the gunman's grandfather, told ABC News he had no idea his grandson had purchased two AR-15-style rifles or that they were in his house.

Since Reyes is a felon, it is illegal for him to live in a house with firearms. Reyes said he would have turned his grandson in.

Reyes said there were no signs the morning of the shooting that anything unusual was going to happen. The suspect had a minor argument with his grandmother over the payment of a phone bill, but nothing significant.

The suspect lived in a front room and slept on a mattress on the floor, according to Reyes. The suspect had been staying with his grandparents after having a falling out with his mother.

Reyes said he took the suspect to work sometimes and that he was very quiet, but he did not seem violent. Reyes also said he tried to encourage his grandson to go to school but the suspect would typically just shrug in response.

Reyes said the suspect did not know how to drive and did not have a driver's license. Reyes also wondered how his grandson would have even gone to purchase the weapons or if he trained on the weapons, saying someone must have taken him there.

The suspect's grandmother, who he shot in the forehead, is undergoing surgery on Wednesday. Reyes said he believes she will survive.

-ABC News' Matt Gutman

2:43

Texas school shooting suspect’s grandfather: ‘It still hasn’t sunk in’

Rolando Reyes spoke to ABC News’ Matt Gutman about his grandson, 18-year-old Salvador Ramos.

Salvador Ramos, the suspect in the Robb Elementary School shooting, after turning 18 on May 16, purchased two rifles and carried out the second-worst school shooting in U.S. history within the span of eight days, according to multiple law enforcement officials.

The suspect purchased two AR-15-style rifles on May 22, two days before the massacre and six days after his birthday, multiple law enforcement officials told ABC News. They were legal purchases.

Once the shooter made entry into a classroom he barricaded himself and opened fire, according to the sources.

Officers from the Uvalde Police Department and agents from Customs and Border Protection entered into the classroom and immediately took fire from the gunman before they shot and killed him.

Investigators are going through the ballistics to determine who fired the fatal shot.