Can I kill this mold?
I really don't have time to write a good answer, but I have and others have written some good responses that would answer your question.  Look at the tags for mold.  ID is important before remediation can be done. You have to know what kind of mold you are dealing with. Some minor mold can be dealt  with DIY, but other toxic molds need professional attention. Samples need to be taken and IDed by a lab. Don't take chances, get it right.