Rhonda Hart, mom of 2018 Sante Fe, Texas, school shooting victim Kimberly Hart, shares her reaction to the elementary school shooting in Uvalde, Texas.

Ten students and staff were killed in the shooting at Santa Fe High School in Texas.

The comedians were in town for a show.

Houston Texans defensive end J.J. Watt has offered to cover the costs of the funerals for all 10 people killed at Santa Fe High School in Texas.

Sabika Sheikh, 17, was among the 10 people killed in the massacre at Santa Fe High School in Texas.

The alleged shooter, a 17-year-old student at Santa Fe High School, is in custody and has been charged with capital murder.

School districts across Texas have announced increased security in the wake of a shooting at Santa Fe High School that left 10 people dead.

Dimitrios Pagourtzis' lawyer says he's "confused and scared" as the investigation into the Santa Fe High School shooting continues.

Rome Shubert, 16, who was shot in art class at Santa Fe High School, did not realize he was shot in the head until he'd escaped.

Tenton Beazley tells "GMA" how he helped his classmates despite being shot himself while in art class at Santa Fe High School.

Dimitrios Pagourtzis, 17, who fatally shot 10 and injured 13 others at a Texas high school, researched tactics used by other mass shooters, sources told ABC News.

Host Kelly Clarkson opened the 2018 Billboard Music Awards on Sunday night with an emotional speech about the recent mass shooting at a high school in Santa Fe, Texas.

Dimitrios Pagourtzis, 17, is accused of gunning down 10 people inside a school.

Survivors of the school shooting allege the suspect played music and made jokes during the massacre.

Galveston County Sheriff Henry Trochesset released details into how the shooting ended.

George Stephanopoulos goes one-on-one with Lt. Gov. Dan Patrick, R-Texas, on the mass school shooting in Santa Fe, Texas Friday.

The suspect's parents released a statement saying they are shocked and confused by what happened and extend their heartfelt prayers and condolences to all of the victims.

Fred Guttenberg, a father who lost his daughter in the Parkland, Fla. school shooting, and Nicole Hockley, a mother who lost her son in the Newtown, Conn. school shooting, join "This Week."

A 17-year-old student allegedly opened fire at Santa Fe High School in Texas this morning, where at least 10 others were wounded, including a police officer.

Students describe how the alleged shooter wore a black trench coat, camouflage pants and combat boots to school every day.

Community mourns the10 victims killed as authorities probe motive behind massacre.

Police say 10 people were killed, 13 recovering from injuries.

The number of deaths "could be anywhere between eight to 10, majority being students," Harris County Sheriff Ed Gonzalez said.

At least 10 people are dead after a student allegedly opened fire at Santa Fe High School in Texas this morning, sending students fleeing for their lives, the governor said.

Sophomore Dakota Shrader said her friend was shot in the leg while in class at Santa Fe High School.

A Texas student says she was in art class when "everyone started screaming and running."

There are multiple fatalities from a shooting at Santa Fe High School near Galveston, Texas, Friday morning.

An active shooter incident took place this morning at Santa Fe High School near Galveston, Texas, according to the school district.

Authorities said at least 10 were killed, including one teacher, when a student opened fire at Santa Fe High school in Texas.

The president said his administration will do "everything in our power to protect our students."

Dimitrios Pagourtzis kept his head low during his a brief arraignment tonight.

Press secretary Sarah Sanders said the commission will reinitiate conversations on how to better protect America's students.

Adrienne Bankert reports the buzziest stories of the day in "GMA" Pop News.

Christian Riley Garcia was killed during the May 18 shooting at Santa Fe High School.

The students appeared alongside representatives for March for Our Lives Houston.

Gov. Greg Abbott released the report in the wake of the Santa Fe shooting, which left 10 people dead and 13 others wounded.

The May 18 shooting left 10 students and staff dead and 13 others injured.

Santa Fe High School students were greeted by community members holding signs of support as they returned to class this morning for the first time since a mass shooting killed 10 people.

Justin Timberlake delivered a gift to a victim of the Texas school shooting.

Santa Fe High School students had participated in March for Our Lives after the school shooting in Parkland, Florida, months before a shooting at their own school.

Funerals are today for a teacher and two teen boys killed in the shooting.

They say the suspect's parents "failed to teach their son" "respect for life."

Dimitrios Pagourtzis, 17, is accused of killing 10.

Dimitrios Pagourtzis, 17, is in custody charged with capital murder.

Sabika Sheikh, 17, was among the 10 people killed in the massacre.

Ten were killed in the Friday morning high school massacre.

Cynthia Tisdale, an art room teacher's aide, was among the 10 killed on Friday.

Ten were killed and 13 were injured in the Friday morning shooting.

Ten people were killed at a Texas high school on May 18.

The suspect, 17-year-old Dimitrios Pagourtzis, is in custody.