A Sioux Falls man and a Yankton man are facing serious federal charges after being indicted by a grand jury for Distribution of a Controlled Substance Resulting in Death. Evan Wylde Nelson, 18, and Udda Ambi Kobaba, 19, also known as “Tayski,” are accused of distributing fentanyl that led to the death of a victim between December 20 and 22, 2023. Both men have pleaded not guilty. Read: 41 Arrested In Hillsborough County Sheriff’s Office “Operation Summer’s End” If convicted, they face a mandatory minimum sentence of 20 years in prison, with a maximum penalty of life imprisonment and a fine of …