17-year-old to remain in juvenile detention following arrest in Riverdale after-graduation shooting The Citizen 4 years ago The 17-year-old alleged shooter in the Riverdale High School after-graduation shooting at MTSU will remain in juvenile detention. Source: The Daily News Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X 1 dead, 1 hurt in shooting after Riverdale High graduation on MTSU campus, police sayDateMay 19, 2022In relation toLascassasMTSU shooting: What we know about fatal shooting after Riverdale HS graduationDateMay 19, 2022In relation toLascassas'Worst nightmare': School board member responds to fatal shooting after Riverdale High graduation at MTSUDateMay 19, 2022In relation toLascassas