Britain’s deputy prime minister said Sunday that he told U.S. Vice President JD Vance he was wrong to blame immigration for the death of a university student who was handcuffed as he lay dying from a stab wound. David Lammy, who is also the justice minister, said he challenged Vance in what he described as a “robust” phone call on Saturday. The call came a day after Vance said in a post on social platform X that there should be “righteous anger” in response to the murder of Henry Nowak, 18, who died in December after being stabbed by Vickrum Digwa in the English city of Southampton.