Charlie Kirk has been posthumously awarded the Presidential Medal of Freedom by Donald Trump.
The USA's highest civilian honour is to be received by the conservative activist's widow, Erika, at the White House.
Kirk, 31, was fatally shot on 10 September while speaking at an event at Utah Valley University.
He founded Turning Point USA and toured American university campuses, debating students about current affairs.
A 22-year-old man, Tyler Robinson, from the city of Washington in Utah has been charged with Kirk's murder . Prosecutors said they would seek the death penalty.
At a memorial event held at a stadium in Arizona, Erika Kirk told an enormous crowd she forgave her husband's killer .
"The answer to hate is not hate," she said.
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