MSNBC host Chris Matthews slammed the Republican National Convention speech Monday by the mother of one of the four killed in Benghazi, saying he didn't "care what that woman up there, the mother, has felt."

Chris Matthews on mother of man killed in Benghazi: "I don't care what that woman up there has felt" #RNCinCLEpic.twitter.com/Fvsh2SQjCw — Jon Feere (@JonFeere) July 19, 2016

While he praised the RNC address by "Lone Survivor" Navy SEAL Marcus Luttrell, he sharply criticized the remarks by Patricia Smith calling Hillary Clinton a liar who deserved to be in prison. Her son Sean Smith perished in the 2012 terrorist attack, and Clinton's handling of the ordeal and subsequent deceit about its causes as secretary of state have plagued her ever since.

"This gross accusation that somehow Hillary Clinton had anything to do with the death of Chris Stevens … She had nothing to do with it," Matthews said. "Worst-case scenario, she didn't gave a straight story afterwards."

Matthews said he didn't understand why the Republicans would put Smith in prime-time television.

"I think it was wrong," he said. "I don't care what that woman up there, the mother has felt. Her emotions are her own, but for the country in choosing a leader, it's wrong to have somebody get up there and tell a lie about Hillary Clinton. It's not true. It's logically not true … I think it's wrong that they ruined their evening with this."