FORT HOOD, Texas A gruesome affidavit from the FBI details the investigation surrounding the death of specialist Vanessa Guillen.
Vanessa Guillen: A timeline of events and everything we know about her disappearanceCecily Aguilar, 22, (left) was charged in connection with the disappearance of Vanessa Guillen.
U.S. Army Specialist Aaron Robinson, 20, (right) who officials say committed suicide this week, is accused of killing Guillen.
(KPRC)According to the affidavit, Aguilar said Robinson struck Guillen in the head with a hammer multiple times on April 22 inside an arms room at Fort Hood, killing her.
Robinson then placed Guillens body inside a large tough box with wheels, which two witnesses at Fort Hood say they saw Robinson load into his vehicle the same day.