Records: Fight, stabbing preceded Napa double killing

A fight and stabbing preceded the fatal shootings of two teenagers Saturday night on a Napa residential street, according to court records.

The new details are included in criminal complaint documents the prosecution is using to support charges against Jessica Whitten and Judith Adolph, both 19.

The pair are two of three suspects arrested in connection with the killings of Aileen Villasenor, 19, of Rohnert Park and Sasha Mufich, 17, of Napa.

Whitten is charged with two counts of first-degree murder and one count of being an accessory. Adolph has been charged with two counts of assault with a semiautomatic rifle and one count of being an accessory.

Both briefly appeared Thursday in Napa County Superior Court in Napa before Judge Francisca Tisher. They will return to court May 7 to enter pleas.

A third suspect in the killings, Jonathan Richard Wesley Nicholson Jr., 22, of Vallejo is charged with two counts of murder.

Napa police say the teens were shot at about 8:10 p.m. Saturday on Riverside Drive, a residential street directly south of downtown Napa and parallel to the Napa River.

One victim was pronounced dead at the scene and the other died at an area hospital.

According to court records, Nicholson, Whitten and Adolph were at the scene so Adolph could fight one of the victims.

During the altercation, one of the victims stabbed Adolph before Nicholson put on a mask, chased the victims and opened fire, according to court records.

Whitten is accused of driving the car the three defendants used to leave the scene.

Court records didn’t specify what actions warranted the murder and assault charges filed against Whitten and Adolph, respectively.

Nicholson made his first court appearance Wednesday and was assigned an attorney with the Napa County Public Defender’s Office. He’s also scheduled to enter a plea on May 7.

You can reach Staff Writer Colin Atagi at colin.atagi@pressdemocrat.com. On Twitter @colin_atagi