A man who previously served prison time for a murder in Washington state has been convicted by an El Dorado County jury of the 1980s slayings of three teenage girls, including 15-year-old Kathy Graves of South Lake Tahoe.
Joseph Michael Nissensohn was found guilty Thursday of three first-degree murders in the 1989 death of Graves, and the 1981 slayings of Tammy Jarschke, 13, and Tanya Jones, 14, in Monterey County, according to an El Dorado County District Attorney's Office news release. The jury also found true additional special circumstances allegations, including the 1989 Washington murder of Sally Jo Tsaggaris, 46.
The guilt phase of the trial began May 14 with jury selection. Nissensohn faces the death penalty, with the penalty phase of the trial to begin Nov. 12 in South Lake Tahoe, authorities said.