WESTFIELD, N.J. (CBSNewYork) – A New Jersey high school principal who lost his life after donating bone marrow to save a sick teen was laid to rest Tuesday.

Westfield High School principal Dr. Derrick Nelson died last week at the age of 44.

READ MORE: R. Kelly Found Guilty Of All Counts In Sex Trafficking, Racketeering Trial

MORE: Are There Fatal Complications Donors Need To Worry About When Giving Bone Marrow?

Family, friends, students and teachers attended the funeral at St. John Baptist Church in Scotch Plains.

READ MORE: COVID Vaccine Mandate For New York City Teachers To Take Effect After Federal Appeals Court Lifts Temporary Ban

Nelson was in a coma for a month after donating bone marrow to a 14-year-old boy in France.

He also served 20 years in the U.S. Army Reserve.

MORE NEWS: Parents Of Immunocompromised Girl Say Long Island School District Refused Requests For Adequate Remote Option

He left behind a fiancé and 6-year-old daughter.