gelert and dexi. what a great thing to do. canno just say, we much. gelert and dexi.s once, gelert. we will be back with the headline shortly. time now to get the news, travel, and weather where you are. good morning. i'm asad ahmad. a scotland yard detective believes he's found a way of forecasting where deadly knife attacks in london are likely to take place. detective chief inspectorjohn massey trawled through records of knife crimes in london over a 12—month period and found there was a link. most killings occurred in neighbourhoods where someone had been attacked with a knife, the year before. it's hoped the information can be used to deploy officers more effectively. a londoner who went to syria to fight with ypg kurdish forces against isis claims he's been left in the dark after being arrested on suspicion of terror offences. jamie janson joined the ypg in 2017, but was arrested when he returned to britain. though released without charge, he's been under investigation ever since. the government warns that anyone travelling to get involved in a foreign conflict