An Arizona woman who spent more than two decades on death row in her four-year-old son’s killing saw her murder charge dismissed, bringing an end to a controversial case that relied almost entirely on the work of a detective with a long history of misconduct.

A condemned murderer took nearly two hours to die and gasped for about 90 minutes during an execution in Arizona that quickly rekindled the national debate on capital punishment in the US.

A lawyer wounded in a shooting at an Arizona office building has died.

A man who shot dead a call-centre chief and critically wounded a lawyer at an Arizona office building where they were meeting to discuss a contract dispute has been found dead.