SAN FRANCISCO, Sept. 22 – Slayer Charles Manson’s effort to get two of his murder convictions overturned was rejected by the California Supreme Court yesterday.

It denied without comment his request to review a state Court of Appeal decision upholding his conviction in the stabbing deaths of Gary Hinman and Donald “Shorty” Shea in 1969.

The high court earlier had denied an appeal from his conviction in the slaying of actress Sharon Tate and six others in two separate Los Angeles incidents in August 1969.

Manson’s latest court action contended publicity surrounding him and his family of followers deprived him of a fair trial and due process. Manson also maintained evidence was circumstantial, that the grand jury indictment procedure was unconstitutional and that there was no competent evidence to support the indictment.

The appeal court in Los Angeles, in upholding the conviction, had said testimony by Manson, two family members, three other witnesses and two policemen established that he instructed four members of the family to rob Hinman, a neighbor in the Topanga Canyon area near Malibu.

When the robbery did not go as planned, the court said, Manson went to the scene with others and the incident ended with the fatal stabbing of Hinman on July 27, 1969. Manson and two others were indicted for his death.

Shea was a ranch hand who apparently incurred the displeasure of Mattson. Although his body was never found, testimony indicated he was stabbed to death some time between Aug. 16 and Sept. 1 in 1989. Manson and two others were charged in the slaying.

The appeal court held the evidence was sufficient to support the jury verdict even though circumstantial evidence was needed to establish the corpus delicti. It also ruled publicity from the Tate slayings did not deprive Manson of a fair trial.