Shrien and Anni Dewani should be three weeks into married life. Instead, tragically, Shrien is coming to terms with life as a widower,

Shrien and Anni Dewani should be three weeks into married life. Instead, tragically, Shrien is coming to terms with life as a widower, one week after his wife was shot dead while they were honeymooning in South Africa.

Police in the Western Cape yesterday arrested a third suspect in connection with the murder, which occurred after the Dewanis' taxi was carjacked late last Saturday night in Gugulethu, a township on the outskirts of Cape Town. The latest arrest came after local media reports this weekend promised "an explosive revelation", saying police sources believe there is more to the case than a random hijacking.

The case, which has stunned not only the Dewanis' family but the entire Rainbow Nation, poses numerous questions for South Africa's stretched police force. Not the least of these concerns is the nature of the assault; and what the newlyweds were doing driving late at night through some of the country's most notorious settlements, when most honeymooners would have been enjoying the luxuries of their exclusive hotel on Cape Town's waterfront. In Gugulethu alone, 700 people have been murdered since 2005.

Then there is the perilous financial position of Mr Dewani's family firm. PSP Healthcare, the care home chain he set up with his father and brother in 2005, is £6.25m in debt and has yet to file its returns for this year.