More than 41 years after prosecutors say he participated in the murder of Tewksbury teen Johnny McCabe, Walter Shelley was arraigned Tuesday in Lowell Superior Court.

Shelley, 60, one of three men indicted by a Middlesex County Grand Jury in connection with the 1969 slaying of the 15-year-old, is charged with first-degree murder and intimidation of a witness.

According to a spokesperson for District Attorney Gerry Leone, Shelley, the only defendant who still lives in Tewksbury, is scheduled to be back in court on July 5 for pre-trial conferencing. Bail was continued at $500,000, which Shelley posted a few weeks ago.

Edward Brown, 59, of Londonderry, NH, whose answers during an interrogation by investigators in March led to arrests in the cold-case, is charged with manslaughter. According to the spokesman, a date has not yet been set for his arraignment.

The third defendant, Michael Ferreira, 57, also appeared in court on Tuesday. He was in the juvenile division for the third and final day of a hearing to determine if he will be charged as an adult with first-degree murder in McCabe's death. Ferreira was 15 when McCabe was killed.

The spokesman for Leone's office declined comment on Ferreira's case, stating that the office never comments on juvenile court matters. However,  a source close to the investigation, speaking on the condition of anonymity, said a decision will be rendered by July 15.

Complete coverage of the Johnny McCabe Murder Investigation can be found here.