Natasha Elderfield is accused of the murder of boyfriend Robert Dobinson . He is said to have found her about to have sex with another man . She allegedly stabbed him and left him to die on banks of River Thames . Elderfield , 33 , denies murder and claims Dobinson accidentally walked into the knife .
Natasha Elderfield is accused of the murder of boyfriend Robert Dobinson . He is said to have found her about to have sex with another man . She allegedly stabbed him and left him to die on banks of River Thames . Elderfield , 41 , denies murder and claims Dobinson accidentally walked into the knife .