studio: a short statement then from the chief superintendent martin parker, from lincolnshire police,ear—old man in the central boston area this afternoon, it only happens around one hour and 20 minutes ago. —— detained. it follows the release of the cctv footage of a man they wanted to question and it does appear that people members of the public, have been able to help the public, have been able to help the police, but still want to hear from anyone who may have any information about lilia valutyte's death after she was fatally stabbed on thursday in fountain lane in boston. yesterday, the police named her as lilia valutyte. there's yet more disruption on britain's railways this weekend, as train drivers who are members of the aslef union, at seven rail companies walk out, in a row over pay. it's the second strike this week affecting passengers, with more scheduled for dates in august. our correspondent, judith moritz, reports on the scale of the disruption. folkestone station this morning was a gateway to nowhere. no southeastern trains running and passengers who didn't know about