years. May 3 – Katrina and the Waves win the Eurovision Song Contest 1997 for the United Kingdom with "Love Shine a Light". May 9 – The first genetically modified three-parent baby is born. May 10 – The 7.3 Qayen earthquake strikes eastern Iran with a maximum Mercalli intensity of X (Extreme). At least 1,567 were killed and 2,300 were injured. May 11 – IBM's Deep Blue defeats Garry Kasparov in the last game of the rematch, the first time a computer beats a chess World champion in a match. May 12 The Russian–Chechen Peace Treaty is signed. An F1-rated tornado strikes downtown Miami, causing $525,000 in damages. Pictures and videos of this tornado made news headlines around the world. May 15 – The United States government acknowledges existence of the "Secret War" in Laos (1953–1975) during the Vietnam War, and dedicates the Laos Memorial in honor of Hmong and other "Secret War" veterans. May 16 President Mobutu Sese Seko is exiled from Zaire. U.S. President Bill Clinton issues a formal apology to the surviving victims of the Tuskegee Study of Untreated Syphilis in the Negro Male and their families. May 17 – Troops of Laurent Kabila march into Kinshasa. May 23 – Mohammad Khatami wins the 1997 Iranian presidential election and becomes the first Iranian Reformist president. May 25 – A military coup in Sierra Leone replaces President Ahmad Tejan Kabbah with Major Johnny Paul Koroma. May 27 – The second-deadliest tornado of the 1990s hits in Jarrell, Texas, killing 27 people. May 31 – The 13-kilometer Confederation Bridge, the world's longest bridge spanning ice-covered waters, opens between Prince Edward Island and New Brunswick, Canada. June June 1 Socialist Party-led Centre-left coalition won the second-round in 1997 French legislative elections, began with the third Cohabitation (1997–2002). Hugo Banzer wins the Presidential elections in Bolivia. June 2 – In Denver, Colorado, Timothy McVeigh is convicted on 15 counts of murder and conspiracy for his role in the 1995 Oklahoma City bombing. June 10 – Khmer Rouge leader Pol Pot orders the killing of his defense chief, Son Sen, and 11 of Sen's family members, before Pol Pot flees his northern stronghold. June 11 – In the United Kingdom, the House of Commons votes for a total ban on handguns. June 13 – A jury sentences Timothy McVeigh to death for his part in the 1995 Oklahoma City bombing. June 16