The Fort Hood Army Specialist will then be laid to rest at Forest Park Lawndale Funeral Home in southeast Houston.
The family's attorney said a public memorial service will be held on Friday, Aug. 14 at Chavez High School from noon to 8 p.m. A private funeral will be held on Saturday, Aug. 15.
Guillen disappeared from Fort Hood on April 22. Her remains were found on June 30, near the Leon River.
The Army Criminal Investigation Division said Aaron Robinson killed Guillen then shot and killed himself in the early morning hours of July 1 when police approached him in Killeen. Cecily Aguilar was also charged with conspiracy to tamper with evidence.
Aguilar told police Robinson killed Guillen with a hammer in the armory room on post then the two of them dismembered Guillen's body and buried the remains in three separate holes.
Guillen's family and their attorney said Guillen was being sexually harassed but she did not report it to her superiors for fear of retaliation.
3rd Cavalry Regiment Commander COL Ralph Overland assigned a team to investigate the sexual harassment claim on June 18 but did not find any evidence to support the claim. Overland said the investigation was ongoing.