evidence: Three more persons have been arrested for allegedly torching Sri Lankan President Ranil Wickremesinghe's private residence during last month's massive anti-government protests, taking the total number of arrests to seven, according to a media report on Tuesday. [...] On July 9, in remarkable scenes of a country in meltdown, anti-government protesters set Mr. Wickremesinghe’s private residence at Cambridge Place on fire. Mr. Wickremesinghe said much of the contents in his private residence were not salvageable, with extensive destruction to his 125-year-old piano and more than 4,000 books gutted.