ROCHESTER — A Rochester man will appear in Olmsted County Court Wednesday in two March assault cases. Abdulahi Mohamed Abukar, 25, made his first appearance related to a March 22 carjacking at Valleyhigh Flats and a March 23 shooting outside Walmart North. According to Rochester police, the U.S. Marshals Service and Anoka County Sheriff’s Office helped arrest Abukar in Columbia Heights Tuesday, July 28. He was booked into the Olmsted County Adul…