Complex sentence: The Goleta serial killings are a group of at least ten unsolved murders committed between 1979 and 1986 in and around Goleta, California that have sometimes been attributed to the (also unsolved) Original Night Stalker murderer.
Split into simpler sentences: The Goleta serial killings are a group of at least ten unsolved murders committed between 1979 and 1986 in and around Goleta, California. The murders have sometimes been attributed to the (also unsolved) Original Night Stalker murderer.