Mr. William Lim worked as a Manager in an international oil and gas company. He was a social media freak, smart and well performing entry-level management executive and had good taste of beautiful female friends. However, he had some psychological disorders and schizophrenic behaviors due to violent physical relationships with two female friends at same time in the past. One day he received an e-mail from one of the female partners of past and he was instructed to get involved in website Phishing business. He discussed the mail with his cousin, and he was suggested to take service of forensic expert and to make a complaint through online complaint portal.

Based on the above case study, if you are one of the computer forensic investigator initiated for the above case, discuss in details the solution for the case using the email forensic methodology. (I want the answer to suit 25 marks)