Karmelo Anthony -- the 17-year-old accused of killing a fellow teen at a track meet earlier this year -- will not face the death penalty ... something the alleged victim's father doesn't exactly seem happy about.
Anthony was formally indicted on one count of first-degree murder on Tuesday over his alleged role in an April 2 stabbing at a high school track meet ... and a short time after the charge was announced, law enforcement sources explained to TMZ Sports the death penalty won't be in play.