Four Charles County teenagers attacked and stabbed a jogger before dawn as part of a gang initiation that followed hours of aimless driving and drinking, one of the assailants told a court on Monday.

The testimony came in the Charles County Circuit Court trial of Alexander Scott Teacher, 16, the first of three youths to face trial in the January attack on Ronald Oliver, 60, of Bryans Road.

Oliver, who was set upon shortly after 6 a.m. during his regular morning run, was left stunned and bleeding on the street. He staggered the few dozen yards to his home, where his wife called for help. He was treated at Civista Medical Center in La Plata and released.

The testimony phase of Teacher's non-jury trial concluded Tuesday, and Circuit Court Judge Richard J. Clark said he would deliver a verdict yesterday afternoon.

Teacher, of Waldorf, who was tried as an adult, faced a maximum sentence of life imprisonment if convicted on charges of attempted murder and assault.

Two youths -- Randy Rogers Jr., 17, of Indian Head, and Michael A. Hedges Jr., 16, of Bryans Road -- also are accused in the attack and face trial on attempted murder and assault charges later this summer. They also were charged as adults.

The testimony about gang initiations came from a 13-year-old former Waldorf resident who on Feb. 26 pleaded guilty to assault in the attack and is now in the custody of juvenile authorities. The Washington Post normally does not identify subjects of juvenile proceedings.

Teacher was tried as an adult because of the severity of the charges against him and the nature of the attack, said Assistant State's Attorney Michael C. DiLorenzo.

According to testimony by the 13-year-old, the youths drove around Charles County in a red pickup truck during much of the night of Friday, Jan. 22, and the early hours of Saturday, Jan. 23.

They shared fifths of brandy at "a little shack" somewhere in the woods and discussed ways to become a member of a local gang, the youth testified. Methods include killing somebody, robbing somebody, beating somebody or getting "jumped in," which involves submitting to a beating by gang members, the 13-year-old said.

Teacher said he would participate in an attack, the 13-year-old said.

He testified that the group decided to set off for Washington, D.C., to find a victim. But by chance they spotted Oliver, jogging near the intersection of Billingsley Road and Foxhall Drive in western Charles County.

According to the 13-year-old, as the youths got out of the pickup, Teacher "said he was going to stab him. Was probably going to kill him."

The youths struck Oliver and then kicked him when he fell to the ground. Teacher stabbed Oliver, the 13-year-old said. The teenagers ran to the pickup truck and fled, some of them heading to a fast-food restaurant in Waldorf for breakfast, the 13-year-old said.

A doctor testified that Oliver was stabbed twice in the back and once in the chest.

In testimony Monday, Oliver said the assailants, approached him suddenly and asked for information about a person named Dick, then struck him on the head without warning.

"It kind of dazed me, and I went down on the ground," Oliver said.

He said he could not identify his assailants.

"I've been trying to put out of my mind what happened that morning," Oliver said.