What teenagers really see on their phones

The journalist Patrick Radden Keefe on trying to unravel the double life and tragic death of 19-year-old Zac Brettler – and what it tells us about London’s dark underbelly. Help support our independent journalism at theguardian.com/infocus

Keir Starmer has vowed to fight on after Labour suffered heavy losses in local elections, while Nigel Farage’s Reform UK made substantial gains and the Green party won its first ever mayoral victory. So is the era of two-party politics over? And can the prime minister survive? Lucy Hough speaks to political correspondent Alexandra Topping. Help support our independent journalism at theguardian.com/infocus

Journalist Jamie Bartlett on the people trying to get AI to say things it shouldn’t … for the safety of us all. Help support our independent journalism at theguardian.com/infocus

Shell has made $6.9bn in profits since the Iran war began, cashing in on soaring energy prices. The enormous profits have reignited calls for higher taxes on fossil fuel companies to fund support for those hardest hit by rising costs. Lucy Hough speaks to the Guardian’s energy correspondent, Jillian Ambrose – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

As the satirical online newspaper the Onion waits for court approval to take over the conspiracy website Infowars, Helen Pidd speaks to a former staff member about its sinister rise and dramatic fall. Help support our independent journalism at theguardian.com/infocus