Can you work in the FBI and still go to school?

For the undergrad portion, yes. Once you get into medical school, that's going to be a tough task, as most medical schools want you to be devoted full time to the program. So you wouldn't be able to work.

Take advantage of your undergraduate education. Your career path begins in college. As a medical degree is a must if you want to become a medical examiner, you need to take a pre-med curriculum as an undergraduate student.
You should find a school with a good reputation for pre-med curriculum, as having a degree from a recognizable school can increase your chances of getting into a good medical school. You can find rankings of different degree programs online and ask your high school guidance counselor.
For the most part, pre-med students major in biology or bio-chemistry. These programs are offered in most 4-year colleges. Going for a degree with a pre-med focus will involve classes in cell biology, molecular biology, biochemistry, and microbiology. Talk to your college counselor about what your course curriculum should look like semester by semester.[3]
Seek out internships and other experience. Medical related volunteer work, internships, and jobs look great on a pre-med application. Seek out experience in your area by asking professors, advisers, and fellow students to help you find opportunities.
Certifications, such as CPR, can easily be obtained during college. Certain medical positions, such as Emergency Medical Technicians (EMTs), only require a high school degree. Doing EMT work part time in college or over the summers can really make your med school application stand out.
Junior and senior year, begin researching and touring medical schools. If you do tour, try to make connections. Send follow up e-mails to anyone you meet and strive to stay in touch. Making a good impression on an administrator or a professor can help your application for med school stand out.
Graduate schools look to see that the candidate is well-rounded and is pursuing interests like team sports, volunteering, band, and other campus activities.

Hi Andrea,

Step 1: Earn a Bachelor's Degree

Most pre-med students major in either biology or biochemistry. Both subjects are widely available in 4-year colleges and universities, and several offer biology degrees with a pre-med emphasis. Bachelor's degree programs have general education requirements consisting of courses in English, the arts and humanities, social science or the behavioral sciences.

A bachelor's degree program in biology with a pre-med emphasis offers courses in cell biology, molecular biology, biochemistry and microbiology. A bachelor's degree program in biochemistry examines the chemical processes found in living organisms. In lab courses, you might study protein synthesis using DNA, protein modification, protein design and imaging methods. Other possible courses include immunology, genetics and organic chemistry.

Step 2: Complete Medical School

Medical school provides an intensive exploration of the human body and teaches students about the cardiovascular, respiratory, nervous, musculoskeletal and gastrointestinal systems. Through four years of study, you learn how to identify diseases, and cure or manage ailments. The first two years are academically oriented and focus on basic science. The final two years are spent learning in clinics.

Step 3: Complete an Anatomic Pathology Residency

A residency program in anatomic pathology immerses you in the process of diagnosing diseases through an autopsy. Programs are built around rotations in the major subspecialties of anatomic pathology, such as surgical pathology, cytopathology and forensic pathology. Opportunities are available to minor in sub-specialties as well, including gynecologic pathology, dermatopathology and neuropathology. Programs last four years and are divided into a 2-year anatomic pathology segment and a 2-year clinical pathology segment. Others are 3-year programs dedicated solely to anatomic pathology.

Step 4: Complete a Forensic Pathology Fellowship

In a forensic pathology fellowship, you develop your expertise at investigating instances of violent or unexpected death. Training emphasizes evidence collection and the identification of poisoning, disease, trauma or ballistic wounds during autopsies. Many programs have you working for your local medical examiner or coroner's office. Fellowship programs typically last one year.

Step 5: Apply to Work in a Medical Examiner's or Coroner's Office

It is likely you will have to accumulate work experience as a forensic pathologist before working as a medical examiner.

In: http://learn.org/articles/Medical_Examiner_How_to_Become_a_Medical_Examiner_in_5_Steps.html

Best of luck!