A retired petroleum geologist with a love of history said he's found the long-lost site of the deadliest battle ever fought on Texas soil. Though he's yet to convince scholars, Robert P. Marshall has intrigued some and flustered others with his 40-page report declaring that the Battle of Medina site "has been located" Today is Texas Independence Day, the anniversary of the March 2, 1836, signing of the Texas Declaration of Independence. But some Texas history fans focus their energy on the first Texas republic, created in a revolt against Spain nearly 200 years ago and overturned in the lopsided Battle of Medina. Read more