Worst free throw shooters in NBA history?

how many worst free throw shooters do you know in history of NBA. I have found the list of some. The lsit goes here http://blogs.bettor.com/Some-of-the-...y-Part2-a28069. Although some of the players in the list are included due to the sole reason of being among some of the best players but some are also due to the fact that they were unsuccessful in the department of free-throw shooting.