Lucia Garcia was the wife of Ramon Garcia. By the events of Day 2, she was seven months pregnant. She had a sister in Monterey.
Lucia waited in the car while her husband attempted to enter the convenience store owned by Frank Davies for some supplies, since the detonation of the nuclear bomb had frightened the couple to flee Los Angeles. After Ramon broke into the convenience store, the police arrived and attempted to apprehend Lucia, angering Ramon. After he inadvertently shot and killed Davies with a revolver taken from Kim Bauer, he initiated a hostage situation with Kim. Lucia wept as Ramon told the police to take her to her sister in Monterey, where he believed she'd be safe, before he'd release Kim. At 12:35, she was still weeping as officer Raynes complied and had her driven away per her husband's request. ("12:00am-1:00am")
Background information and notes
Additional footage for Lucia sobbing over the phone to her husband is seen in the deleted scenes on the Season 2 DVD.