Five years ago this week, Sybrina Fulton (at left) lost her son, Trayvon Martin. She spoke at UMSL Feb. 22 and met afterward with UMSL students.

Five years ago this week, Sybrina Fulton (at left) lost her son, Trayvon Martin. She spoke at UMSL Feb. 22 and met afterward with UMSL students.
Five years ago this week, Sybrina Fulton (at left) lost her son, Trayvon Martin. She spoke at UMSL Feb. 22 and met afterward with UMSL students.
Five years ago this week, Sybrina Fulton (at left) lost her son, Trayvon Martin. She spoke at UMSL Feb. 22 and met afterward with UMSL students.
Nichols is investigating proteins linked to inflammation in the brain that occurs as part of the neurodegenerative disease.