computer forensics--identify anonymous blog poster and fake gmail account identity

Hello .. I can find the negative information of you definitely .. but not sure how to find the gmail owner who sent this to your clients .. let us discuss .. Regards .. Emon

I am an expert consultant, architect, trainer, writer and developer in software design & development, security, hacking and exploitation domain. Been working for last 9 years in java, .net, php, ruby, python, C/C++, Oracle, MySQL, MSSQL etc. Did most prestigious certifications like OSCP, GCIH, CEH, ECSA, RHCE. I am a frequent speaker, trainer and author for conferences and journals. I have conducted multiple hands-on workshop on practical packet analysis using wireshark, ethical hacking and forensic investigation. Would be happy to help you on this. Thank you.

Dear : I am a programmer, and have 6 years experience, such as the Java Web, Database(Oracle, MySql, Sql Server ), I can worked well for this task.