Noem says she grieves for family after CBP-related shooting in Minneapolis, vows thorough investigation

"I'm grieved for them. I truly am. I can't even imagine losing a child," Noem said during an exclusive interview on "The Sunday Briefing."

Noem previously defended the agent's actions as self-defense.

"Alex was a kindhearted soul who cared deeply for his family and friends and also the American veterans whom he cared for as an ICU nurse at the Minneapolis VA hospital," the couple wrote.

"The sickening lies told about our son by the administration are reprehensible and disgusting. Alex is clearly not holding a gun when attacked by Trump's murdering and cowardly ICE thugs. He has his phone in his right hand and his empty left hand is raised above his head while trying to protect the woman ICE just pushed down, all while being pepper sprayed," they continued.