HOUSTON Fort Hood officials are expected to announce new updates in the disappearance and death of Houston-native soldier Vanessa Guillen Monday. Guillens remains were found last week near Leon River in Bell County and were positively identified as the missing soldier Sunday. Cecily Aguilar, 22, is accused of tampering with evidence in connection with the 20-year-old soldiers disappearance. Troubling reality'The updates from Fort Hood officials come as Congresswoman Sylvia Garcia and 87 other members of Congress sent a letter to the Department of Defense demanding an independent investigation into Fort Hoods handling of Guillens case. In SPC Guillens case, the U.S. Army failed both Vanessa and her family, said Congresswoman Garcia.