On a cold March day, this lesser known Earp brother, Morgan, was shot
dead just as he himself was getting ready to shoot. Send a photo of
what he was wielding.

Howdy, Melisa.

Morgan Earp was killed while he was shooting pool (or billiards).

The University of Kansas :Wyatt Earp Family History
http://www.ukans.edu/heritage/families/earp.html

"March 1882 Ike Clanton attempted to kill Wyatt and Morgan while they
were playing pool. Morgan Earp was killed."

"At 10:00 Saturday night while engaged in playing a game of billiards
in Campbell & Hatch's Billiard parlor, on Allen between Fourth and
Fifth, Morgan Earp was shot through the body by an unknown assassin."

Tombstone 1880: Morgan Earp
http://www.tombstone1880.com/archives/morgan.htm

"One month later, Morgan Earp was assassinated while playing pool in
Campbell & Hatch?s billiard hall."

The High Chaparral: Johnny Ringo
http://www.thehighchaparral.com/historic6.htm

The question asks what Morgan was wielding. The answer is a pool cue. 

Here are some photos:

Oshmans: cue
http://www.oshmans.com/graphics/product_images/p794303reg.jpg 

MC Sports: cue
http://www.mcsports.com/graphics/product_images/p269001reg.jpg

Oklahoma Billiards: cue
http://www.oklahomabilliards.com/cues/2003/Tuxedo/Cue.jpg

My Google search strategy:

Google Web Search: "morgan earp" killed OR shot pool OR billiards
://www.google.com/search?hl=en&q=%22morgan+earp%22+killed+OR+shot+pool+OR+billiards

Google Image Search: pool cue
http://images.google.com/images?q=pool+cue&hl=en

Good luck in the contest!

~pinkfreud

Thank You very much!

Thank you for the five stars and the tip!

~pinkfreud