Hi Elana,
 My name is Stacey Inch and I officially participated in the Magen David Adom program two summers ago.  I enjoyed the program so much that I returned to Israel on my own last year after just over a month back in Canada and spent another year volunteering.  I participated in many of last summer's activities and I think I met you once.  Yochai was a friend of mine.  This summer I had planned to participate in the second Magen David Adom program that Yochai was working on, but now I'm writing to offer my help.  I'm sure that the second MDA program will not occur, but I really want to make sure that the original MDA program does take place this summer because I know how important it was to Yochai and what an incredible program it had become with his work.  I will help in any way possible with this summer's group either during the summer or prior to it to make sure that they can still do the program.  Having participated for two summers worth and another 8 months in between at MDA Jerusalem, I have a lot of experience with the system. 
Please let me know what I can do to be of assistance.
I hope you and everyone at the Aliyah Center are somehow managing to deal with this unbelievable tragedy,
Stacey