Following the recent overdose deaths of two high school students in Portland, Central Oregon law enforcement say the battle against Fentanyl is here, as well. Deschutes County Sheriff Shane Nelson tells KBND News, the amount of fentanyl equal to four grains of sand is enough to kill someone. And, there’s no way for users to know how much they’re taking. He said with illegal manufacturers there's no state or federal oversight with regard to how much of a drug can go into a pill. Nelson said it’s especially dangerous for young people who may not realize Fentanyl is in a pill they’ve been given from a friend. According to the C-D-C, deaths from Fentanyl among teens have tripled in the past two years.