Sadly, the number of times 'unsatisfactory' brides get burned to death in 'accidents' is still widespread in backwoods-born south Asian groups. I can't pick out from this news clipping whether this is NOT being viewed by local police as, to say the least, suspicious. But proving anything will depend on the evidence, and in most similar instances this is the scenario: nobody saw anything, very few understand the questions they are asked, any independent witnesses are obvious racists who've been out to get the accused for years, and there were never any 'five men'.
Go on, call me a racist for mentioning this, but not discussing it for fear of such accusations means innocent women still get killed, murderers get away with it, and police / medical time is occupied.
And guess who foots the cost in the end.