Ten Things You Need to Know Today: Wednesday 4 May 2016

1. Ted Cruz drops out of Republican presidential race

Senator Ted Cruz has dropped out of the race to be the Republican presidential candidate after a heavy defeat to Donald Trump in the Indiana primary, leaving the billionaire property developer as the "presumptive nominee". In his victory speech Trump told his supporters: "We're going to win bigly." Bernie Sanders won the state in the Democratic fight.

Trump travel ban: Judge expands definition of relatives

2. Police dig in garden of jailed paedophile couple

Police are digging up the garden of jailed paedophiles David and Pauline Williams after receiving a tip-off. Pub landlord Williams, of Cullompton, Devon, was jailed for life last year while his wife was sentenced to 12 years for a series of rapes and assaults of teenagers and children. The couple had boasted of knowing the serial killers, Fred and Rose West.

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3. US Navy Seal killed by IS in Iraq named

US officials have named the Navy Seal killed in northern Iraq yesterday by Islamic State. Charlie Keating IV died when the terror group launched its biggest offensive in the area for months, cutting through Kurdish defences to over-run the town of Tel Asqof. He was on a mission to advise and assist local forces.

4. Sainsbury's profits slide as price war bites

Sainsbury's has reported a fall in pre-tax profits for the financial year 2015-2016. The supermarket giant made £587m in underlying profits, compared to £681m in the previous year. Chief executive Mike Coupe told the BBC the store had been hit by the ongoing supermarket price war, sparked by discounters including Lidl and Aldi.

Sainsbury's halts talks on Nisa buyout

5. Google given access to NHS patient records

A company owned by search giant Google has been given access to healthcare data on as many as 1.6 million NHS patients. DeepMind, a subdivision of the tech giant which develops artificial intelligence, has access to records from the three hospitals of the Royal Free NHS trust in London. It is trying to develop ways of spotting kidney failure.

NHS to share 1.6 million medical records with Google

6. UK to accept child refugees from Europe

The UK is to take accept unaccompanied refugee children from European camps after David Cameron backed down on the issue. The government had previously agreed to take children from from North Africa and the Middle East but, after the threat of a rebellion by his own MPs, Cameron today announced plans to accept young refugees registered in Greece, Italy or France before 20 March.

7. China to release last Tiananmen Square protester

China is to release the last prisoner being held in connection with the Tiananmen Square student protests of 1989. Miao Deshun was 25 when he was jailed and has had no contact with the outside world for years. China jailed 1,600 protesters after hundreds of others were killed by the military and has hidden the event from its own people.

Chinese army releases rap video to attract new recruits

8. Canadian city evacuated because of wildfire

The entire population of Fort McMurray, in Alberta, Canada, has been evacuated as a huge wildfire threatens to engulf the homes of 60,000 residents. The blaze has already destroyed a number of houses and ash is falling on the streets. Traffic was gridlocked as residents fled. The evacuation is the biggest in the province's history.

9. Sadiq Khan ahead in London mayoral race

Sadiq Khan remains on course to become the next mayor of London, according to the final poll before Thursday's vote. The Labour MP has 35% of first preference votes, a nine-point lead over Zac Goldsmith, who is on 26%. With second preferences, Khan is predicted to receive 57% of the vote with Goldsmith on 43%. But Goldsmith could benefit from a low turnout say pollsters.

London Mayor Khan slams foreign investors for leaving homes empty

10. Briefing: How President Assad has colluded with Islamic State

Islamic State has been colluding with the regime of Syrian President Bashar al-Assad, according to copies of handwritten orders sent from the terrorist group's headquarters. Orders suggest that IS forces withdrew its heavy artillery and anti-aircraft machine guns from Palmyra in cooperation with the Syrian regime. Defectors confirmed the historic city was "handed back to government forces by Islamic State as part of a series of cooperation agreements going back years", says Sky News,

US and Russia spar over vetoed Syria sanctions