A jury in Placerville on Friday convicted a man of second-degree murder in the shooting death of El Dorado County Sheriff’s Deputy Brian Ishmael, who was killed in October 2019 responding to a bogus call about the theft of marijuana plants from an illegal grow site near Somerset. Juan Carlos Vasquez-Orozco, 22, who authorities say had been in the United States from Mexico illegally, also was convicted of assault with a firearm on three other deputies.