A series of ghastly murders are being committed. The one similarity in each of the murders is that a strange buzzing sound is always heard right before the murder occurs. Is the killer invisible or possibly some other incredible creature?
2006
2008
2000
2002
1990
1999
1910
1997
1920
1924
2001
1962
1931
1960
1932
1991
1937
1980