Who attacked Reshna?

On their way to Sun Hill, DI Samantha Nixon, Sergeant Nikki Wright and Pc Diane Noble witness a young woman, Reshna Dewan (played by ex-EastEnders star Pooja Shah, pictured), fall from a walkway on the Cole Lane Estate. After rushing to her aid, Reshna tells the officers she was pushed. Sam, Nikki and Diane pay a visit to Reshna's family home where they find her husband, Naz, slumped in a drunken heap - he's got a slit wrist and he's clinging onto a knife. Naz confesses that Reshna left him because of his drink problem and tells Sam 'it's my fault'. Is he confessing to his wife's attack? The following day, the officers learn that Reshna has gone missing from a friend's house. Can they find her before she comes to harm? Elsewhere, DCs Mickey Webb and Terry Perkins join forces with Pcs Tony Stamp and Dan Casper to trap a poker hustler.