Three teens were arraigned Wednesday in connection to the fatal shooting of an 18-year-old in Stamford. 

Police say Jimmy Jean-Baptiste, 18, and two underage suspects were arrested and charged in the death of Antonio Robinson. Jean-Baptiste is facing accessory to murder charges in connection with Robinson's death.

The two juveniles arrested have been charged as adults. They are Sirus Dixon, 15, charged with murder, and Karl Davis, 17, charged with accessory to murder.  

According to police, Robinson was shot and killed near the I-95 overpass on West Avenue in May after he and a friend encountered three teens. Police say the two groups got into an argument and one of them pulled a gun and shot Robinson in the back. It was the city's first homicide of 2018. 

Police say the teens were arrested the night of the incident for trespassing. Police then spent a few months building a murder case against them.

All three are being held on half a million dollars bond.