KISSIMMEE, Fla. – 18-year-old Konrad Schafer of central Florida was sentenced to life imprisonment for his involvement in a 15-day shooting spree that also included a fatal robbery.

The sentencing was passed Friday by a judge who ordered two consecutive life terms. In January, Schafer pleaded guilty to two adult counts of first-degree murder.

According to the authorities, Schafer participated in the shooting spree in July 2013, when he was just 15-year-old. He was assisted by Juan Muriel, Victoria Rios, and David Damus. 17-year-old David Guerrero and 22-year-old Eric Roopnarine were reported dead in the spree and more than 20 houses and vehicles were damaged.

According to prosecutors, Damus killed Roopnarine. He was convicted of first-degree murder and armed burglary in June.