Broken wings/leg Baby Frizzle

[Kiki]

There isn't much that you actually can do if you are dealing with Marek's disease.
Reading this may help to understand a few things about this disease:
The Great Big Giant Marek's Disease FAQ | BackYard Chickens


Should you loss another bird you should send the body for a necropsy and keep a closed flock until you are sure what you are dealign with.

What state are you in?

 

[Kiki]

I don't know who or where you purchased these chicks from but I think you should notify the selling.
I find it hard to believe that the seller didn't know they possible have illness in their flock...they shouldn't be selling birds.