Complex sentence: Four unsolved homicides that occurred in December 2005, January 2006, February 2006 and December 2007 were linked to a single offender, a fifth unsolved death that occurred in October 2006 may have also been committed by the same offender.
Split into simpler sentences: Four unsolved homicides that occurred in December 2005, January 2006, February 2006 and December 2007 were linked to a single offender. A fifth unsolved death that occurred in October 2006 may have also been committed by the same offender.