Probation officers have been accused of having “blood on their hands” after failings left a sexual predator free to stalk and kill Zara Aleena just days after his prison release.Damning findings by a watchdog laid bare a catalogue of errors by probation officers before Jordan McSweeney carried out the brutal attack on the aspiring lawyer.Farah Naz called for “action and accountability” in the wake of her niece’s murder as she branded the Probation Service “incompetent”, with “failures by people at the top”.