21.   He said he had no idea who the gunmen were, though he said he knew that they had come into town shooting and threatening the Zapatistas.

22.   He said all the gunmen were from the neighboring Mexican state of San Luis Potosi.

23.   He said the powerful weapon indicated the gunman might have been a professional hired by drug traffickers.

24.   How could there only have been one gunman?

25.   If the gunman was here to assassinate, he was going to do it.

26.   In both cases, the gunmen were white, suburban and hitherto law-abiding citizens who seem to have stored up their anger for years before they finally snapped.

27.   In other violence Sunday, Hamas said its gunmen were behind the shooting of an Israeli driver in the Gaza Strip.

28.   India said the gunmen were Pakistanis and members of a Pakistan-based militant group called Lashkar-e-Taiba.

29.   Investigators believe that if a third gunman was involved, spent shell casings from the gun he fired will be found.

30.   Israeli army officials suspect that the gunmen were Palestinian militants, committing the first successful terrorist attack on Israelis since early November.