Man found guilty for murdering Potrero Hill dad, son 

A man who gunned down a father and his infant son in late 2005 faces life in prison after he was found guilty in his second murder trial.

A jury of four men and eight women deliberated for nearly five days before finding Joseph Stevens, 23, guilty of first degree murder. In October 2005, Stevens crept up to a car parked in front of 43 Turner Terrace, in Potrero Hill, and unloaded a high-caliber assault weapon into the vehicle, where 22-year-old Dernae Wysinger, his son, Naemon Wysinger, 2, and the boy’s 23-year-old mother sat. Bullets ripped through the family, killing the father and son. The mother was injured.

In a news conference following the guilty verdict Wednesday, San Francisco District Attorney Kamala Harris said Naemon was targeted as an act of revenge. Wysinger and Stevens had been feuding for more than a year, authorities said.

Stevens’ first trial ended in a hung jury in early 2006 after one juror held out for an acquittal.

The second trial, which started in January and lasted approximately three months, included testimony from a new witness, for whom prosecutors had searched but were not able to locate during the first trial, prosecutor Marshall Khine said Wednesday.

The new witnesswas able to identify Stevens as driving the getaway vehicle several days before the crime.

Stevens’ lawyer, public defender Marla Zamora, was not immediately available for comment Wednesday.

District Attorney Kamala Harris called the case a "success story," and said the case represented the importance of witnesses coming forward to help prosecute murder suspects. It also represented the ability of the District Attorney’s Office to keep those witnesses safe, she said.

In May 2006, a key murder witness in the district attorney’s witness relocation program was gunned down in the Bayview district after he ignored instructions to stay away from San Francisco and returned to his neighborhood.

Stevens is due back in court for sentencing on April 27. He faces life in prison without parole.

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