Former president says killing should be ‘wake-up call’ and that federal agents are not operating in a lawful way

Pressure mounted on Donald Trump’s administration on Sunday to fully investigate the previous day’s killing by federal immigration officers of 37-year-old nurse Alex Pretti in Minneapolis.

Calls for an investigation have come from all sides of the political divide after video analysis showed officers had removed from Pretti a handgun he was reportedly permitted to carry – and which he was not handling – before fatally shooting him.