Russian nationals or immigrants are rarely cause of terror but some are.
Russian teenager handed jail sentence in Norway explosives case
https://www.reuters.com/...norway.../russian-teenager-handed-jail-sentence-in-norway-e...Oct 30, 2017 - A Norwegian court sentenced a 17-year-old Russian citizen to nine months in jail on Monday for making a small explosive device and bringing it to the center of Oslo in April.
July 13, 2017 Serghei Kundilovski Huffing Wrong Way Russian Driver Killer California man Russian immigrant Serghei Kundilovski charged in the death of three people from a two-vehicle crash on near Knapp, Wisconsin sentenced by a Dunn County Judge to a total of 75 years in prison for driving the wrong way wrong way down Interstate 94 and killing 3  Prosecutors said 36-year-old Serghei Kundilovski "huffed" cans of air duster before the fatal wrong-way crash, Dunn County which led to criminal charges. Kundilovski entered three guilty pleas for homicide by intoxicated use of vehicle in late November Huffing and driving is a crime in Wisconsin, but not Minnesota
2 dead, 1 recommended criminal charges, russian suspect: Monday May 6, 2013 Kirkland Runaway Bus Kills Ford Escape Kirkland, Washington USA. Bus driver Aleksandr Rukhlin (Russian first and surname) had driven for a year when his Community Transit bus and claimed (actually lied) he lost all brakes as he exited the freeway, ran a red light and slammed into the side of a small Ford Escape SUV, killing 2 of 3 occupants. On May 15, 2014, State Patrol established that the driver of the bus was at fault and recommended filing criminal charges of two counts of vehicular homicide, one count of vehicular assault and one count of hit-and-run with death. No media have speculated on terrorism as a possible motive. The bus did not stop until a half mile away. Driver testing showed no drugs or alcohol and inspections found no problems, with experts saying buses have fail safe systems to prevent any such brake failure. The driver was put on paid administrative leave, and was unwilling to speak to the press. Several passengers said they believed his story. On May 15, 2014, the Washingon State Patrol established that the driver of the bus was at fault and recommended criminal charges against the driver. No media have speculated on terrorism as a possible motive. In December, the King County Prosecutor's Office announced that the Bus driver won't face criminal charges
Boston Marathon bombing - Wikipedia On April 15, 2013, two homemade bombs detonate Dzhokhar Tsarnaev, whose older brother and fellow suspect, 26-year-old Tamerlan Tsarnaev, died following a shootout with law enforcement. Investigators concluded that the Tsarnaevs, who spent part of their childhoods in the former Soviet republic of Kyrgyzstan, planned and carried out the attack on their own and were not connected to any terrorist groups.