The gunman who carried outTuesday’s mass school shootingin Texas barricaded himself inside one an elementary school classroom, officials have said, adding thatall of the victimswere found in that room.
Speaking to CNNthis morning, Lt. Chris Olivarez from the Texas Department of Public Safety said that officers responding to Robb Elementary School in Uvalde on Tuesday morning were “at a point of disadvantage,” because the shooter, 18-year-old Salvador Ramos, had already hunkered down inside the classroom.
Olivarez said the shooter only entered the one classroom on Tuesday.
Initially, a lack of “sufficient man power” at the scene prevented police from engaging the shooter, Olivarez explained to CNN. So, instead, in order to save as many lives as possible, officers started breaking classroom windows to evacuate students and their teachers.
For more on the shooting massacre at Robb Elementary School in Uvalde, Texas, listen below to our daily podcast PEOPLE Every Day.
Eventually, police were able to shoot and kill the gunman.
Olivarez told CNN all of the victims fromTuesday’s shooting— those dead andinjured— were in the same classroom.
Families hug outside the Willie de Leon Civic Center in Uvalde, Texas.ALLISON DINNER/getty

Olivarez said the shooter entered the classroom at around 11:30 a.m., “locked the door, and just started shooting children and the two teachers” inside.
“Just goes to show you the complete evil from this shooter,” Olivarez said.
Investigators have not discussed a motive for Tuesday’s shooting.
Uvalde is a small city about 85 miles west of San Antonio.
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.
He crashed his car in a ditch near the school before entering the building.
Police said at a Tuesday press conference they believe the shooter acted alone.
The children killed were in the second, third, and fourth grades, police confirmed.
source: people.com