Have a good look at this photo of Mohd. Radzhi Salleh, Lunas state assemblyman and former PKR member but now declared himself an independent while supporting the Federal Government of Najib:
Photo of Mohd Radzhi Salleh courtesy of Malaysiakini
Note that he never gave any substantive reasons for leaving PKR, only giving a vague statement he is not happy with the PRK leadership without giving actual reasons or justifications.
Perhaps it is a blessing in disguise. Pakatan Rakyat had problems getting quality candidates to stand for election last March and are now paying for it. Read about those difficulties by Nat, a PKR member who should be in the know at Radzhi: The BN bloodthirsty crossover onslaught continues.
However, all these betrayal by such unsuitable candidates is bringing a cleansing to Pakatan Rakyat, particularly PKR and I am sure when the next General Election comes, Pakatan Rakyat will be cleansed of all weak and unsuitable candidates.