President sought to cast people on the left as sole problem of US politics, while widow of Charlie Kirk said her ‘cries will echo around the world like a battle cry’ – key stories from 12 September at a glance

Donald Trump on Friday advocated for the death penalty in the killing of his close associate Charlie Kirk, as the widow of the rightwing activist spoke publicly for the first time since the shooting.

The president told Fox & Friends in an interview – during which he also announced that a suspect was in custody – that he hopes the shooter “gets the death penalty”. He added: “Charlie Kirk was the finest person. He didn’t deserve this”.

On Friday night, Kirk’s widow, Erika, gave a combative speech from the office where her late husband hosted his podcast, telling “the evildoers responsible for my husband’s assassination” that “You have no idea the fire that you have ignited within this wife. The cries of this widow will echo around the world like a battle cry.”

In an interview on Fox & Friends on Friday morning, the US president was asked what he intended to do to heal the wounds of Kirk’s shooting in Utah. “How do we fix this country? How do we come back together?” he was asked by the show’s co-host Ainsley Earhardt, who commented that there were radicals operating on the left and right of US politics.