Lakewood Church.Photo:Sipa via AP Images

A woman in her early 30’s opened fire at Lakewood Church, just before 2:00 pm CT on Sunday, February 11, 2024 in Houston, Texas. Joel Olsteen’s mega-church, the largest in Texas, was just starting their Spanish service when the shooting began. The shooter was shot and killed by an off-duty law enforcemnet officer; she was accompanied by a 5-year-old child who was shot and taken to Texas Children’s Hospital.

Sipa via AP Images

The 7-year-old boy who was shot in the head duringthe shooting at Lakewood Church last Sundaylost part of his frontal lobe.

Samuel Moreno-Carranza, the son of the shooter, 36-year-old Genesse Moreno, “lost a major part of what makes us who we are…..a portion of his frontal lobe,” his grandmother, Walli Carranza, shared in a WednesdayFacebook post.

“Half of his right skull has to be surgically removed during two surgeries done in less than 24 hours,” Carranza wrote. “He was in cardiac arrest multiple times and no one can determine whether he has significant brain activity because his scalp tissue is too friable to allow the attachment of EEG wires.”

Walli Carranza.AP Photo/Lekan Oyekanmi

Walli Carranza discusses the mental health struggles that her former daughter-in-law, Genesse Moreno, dealt with before she opened fire at a megachurch earlier in the week, Wednesday, Feb. 14, 2024, in Houston. Carranza says she believes that systemic failures as well as lax gun laws ultimately led to Sunday’s shooting at the church

AP Photo/Lekan Oyekanmi

The frontal lobe is “home to areas that manage thinking, emotions, personality, judgment, self-control, muscle control and movements, memory storage and more,” according toCleveland Clinic.

The news comes days after Moreno, Samuel’s mother and Carranza’s daughter-in-law, opened fire last weekend between services at celebrity pastor Joel Osteen’s Houston megachurch.

Just before 2 p.m. on Feb. 11, Moreno — armed with a long rifle and wearing a trench coat — entered the church with Samuel before opening fire, according to Houston police.

Two people were shot, Samuel, who was critically injured, and a 57-year-old man, who was shot in the leg and was in stable condition as of Sunday, according to Houston Police Chief Troy Finner.

Lakewood Church on Sunday, Feb. 18.AP Photo/David J. Phillip

A police officer stands at the top of the steps inside Lakewood Church, Sunday, Feb. 18, 2024, in Houston. Pastor Joel Osteen welcomed worshippers back to Lakewood Church Sunday for the first time since a woman with an AR-style opened fire in between services at his Texas megachurch last Sunday.

AP Photo/David J. Phillip

After a shootout with two off-duty law enforcement officers who were working security at Lakewood, Moreno was also shot, police said. She died from her injuries.Want to keep up with the latest crime coverage? Sign up forPEOPLE’s free True Crime newsletterfor breaking crime news, ongoing trial coverage and details of intriguing unsolved cases.

Finner said that “once she went down, officers reported back to us that she threatened that she had a bomb, so we searched her vehicle, our bomb squad, and also the backpack.”

“No explosives were found, but she was also spraying some type of substance on the ground,” he added.

Lakewood Church pastor Joel Osten.Kirk Sides/Houston Chronicle via AP

From left, Police Chief Troy Finner, Lakewood Church pastor Joel Osteen, Mayor John Whitmire and Fire Department Chief Samuel Pena, participate in a press conference during an active shooter event at Lakewood Church Sunday

Kirk Sides/Houston Chronicle via AP

Moreno acted alone, according to Finner, who also noted that the motive for the shooting is unknown.

“I don’t want to talk about her motivations because I don’t know,” the police chief said. “We may never know the full story.”

Finner also said he could not confirm whether it was Moreno or the officers who shot Samuel.

source: people.com