Serial Killer Spreads Fear in France

    French President Nicolas Sarkozy delivers a speech to magistrates and policemen who took part in the investigations following the shooting of seven persons and in the siege of self-proclaimed Islamist Mohamed Merah's flat in Toulouse, during a meeting at the Elysee presidential palace in Paris, on March 27, 2012. Mohamed Merah was killed during the RAID police special forces unit assault after a 32-hour siege on March 21.  AFP PHOTO KENZO TRIBOUILLARD (Photo credit should read KENZO TRIBOUILLARD/AFP/Getty Images)

    Kenzo Tribouillard / AFP / Getty Images

    French police are speculating that a serial killer is on the loose in Paris after four people were murdered with the same semiautomatic weapon in a suburb of the capital city. The murders, which have taken place over the past five months, have led police to increase their presence five-fold. The most recent, a 47-year-old woman, was killed Thursday. One suspect is being held in connection with the first killing, but no other arrests have been made.

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