The Wyoming Tribune Eagle, Blaine McCartney, Associated Press
In this Wednesday, Oct. 8, 2014, file photo, Phillip Sam walks out of the Laramie County Circuit Court after his initial appearance in Cheyenne., Wyo. Circuit Court Judge Thomas Lee said Wednesday, Oct. 15, 2014, that Sam, 16, accused of killing another teenager, should stand trial as an adult.

CHEYENNE, Wyo. — A Wyoming judge says a 16-year-old boy accused of fatally shooting a man in the head at point-blank range as he begged for his life should stand trial as an adult.

Circuit Court Judge Thomas Lee says he heard enough evidence against Phillip Sam of Cheyenne at a preliminary hearing Wednesday to move the case to a higher court. Sam is charged with first-degree murder and aggravated assault and remains in jail with bail of $250,000 cash.

Police say 19-year-old Tyler Burns died a day after being shot Oct. 5. They say Sam fired at least 14 shots at a group of teens that showed up for a prearranged fight between Sam and another juvenile.

Some witnesses told police that the wounded Burns begged Sam not to shoot him again.