Darren Wilson has no intention of apologising to the family of Michael Brown, his lawyers have said.
Brown's parents expressed their anger after Wilson said he had a clean conscience and would change nothing about his actions on the day he killed their son in the St Louis suburb of Ferguson.
"He's a murderer," responded the 18-year-old's father, Michael snr.
James Towey, a member of the officer's legal team, told the Washington Post: "Even if [Wilson] gave the most heartfelt apology, they would still not like it."
"Taking a life is a horrible thing to have to do," said lawyer Neil Bruntrager. "And yet, the key phrase is, 'to have to do'. Because that is what he thinks. Is that going to make the Browns feel any less grief?"