Mexican Officer Killed Investigating American's Death

Austin – A Texas sheriff says the dismembered head of a Mexican police commander investigating the reported shooting of an American on a border lake was found in a suitcase outside a Mexican Army base.

Zapata County Sheriff Sigifredo Gonzalez told The Associated Press that "reliable sources within the law enforcement community of Mexico" told him that Rolando Flores' head was discovered Tuesday morning.

Flores was the commander of state investigators in Ciudad Miguel Aleman and was part of a group investigating the reported shooting of American David Hartley on Sept. 30.

Mexican divers have been searching the lake for Hartley's body.

Gonzalez says the chances of finding Hartley's body grow slimmer with each passing day.

Copyright 2010 The Associated Press.