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As students hid behind desks and doors during the latest deadly school shooting in the United States, they pulled out their cell phones.

It was just before 10:30 a.m. Wednesday, that Becky Van Der Walt received a text message from her son that no parent wants to receive.

“I think there’s a school shooting,” Van Der Walt’s son, Henry, a junior at Apalachee High School in Winder, Georgia, wrote, according to text messages shared with ABC News. “We heard gunshots and the police shouting … We’re all in hard lockdown.”

Around eight minutes later, Henry sent another text to his mom with three simple words, “I love you.”

As students hid behind desks and doors during the latest deadly school shooting in the United States, they pulled out their cell phones.

It was just before 10:30 a.m. Wednesday, that Becky Van Der Walt received a text message from her son that no parent wants to receive.

“I think there’s a school shooting,” Van Der Walt’s son, Henry, a junior at Apalachee High School in Winder, Georgia, wrote, according to text messages shared with ABC News. “We heard gunshots and the police shouting … We’re all in hard lockdown.”

Around eight minutes later, Henry sent another text to his mom with three simple words, “I love you.”