Sex Assault Cases Against Marsh Go to Grand Jury A prosecutor is to present evidence to a Texas Panhandle grand jury in sex assault cases against eccentric millionaire artist Stanley Marsh 3. Special prosecutor Matt Powell on Wednesday will take six counts of sexual assault and five counts of sexual performance by a child before a Potter County panel. The 75-year-old millionaire and artist is accused of molesting a 15-year-old boy and a 16-year-old boy in 2010. He's been free on bail since turning himself in after an arrest warrant listing the 11 felony counts was issued in November. If convicted, Marsh faces up to 20 years in prison per count. His attorneys have denied the allegations. In February, Marsh settled 10 lawsuits from teenagers who alleged he paid them for sex acts.