Kami Baker, one of the victim's close friends, said the girl came to the dance Saturday evening clad in a sparkling purple gown, diamond necklace and matching silver shoes.
"When we walked in the dance together she said, 'I can't wait to get my dance on!'" Baker, 16, told ABCNews.com.
But what began as a night the teen girls were looking forward to, soon became a nightmare.
"She was perfectly sober at the dance," said Baker, who saw the victim just 15 minutes before she left the dance. "She was bubbly, and kept saying how happy she was to be at the dance."
Baker said that the victim had many close friends who weren't able to attend the dance because of the $10 admission fee. She described her friend as an outgoing student who was enrolled in an honors English class.
She had a long distance boyfriend, according to Baker, and although she had wanted to join the school's photography club, her parents didn't like her to stay after school and her church commitment took up much of her time.
Baker is one of several community members who claim that security and school officials saw a group of men and teens outside the homecoming dance and did nothing about it.
Students and teachers spoke out at a school meeting Wednesday evening. Some lashed out at the media for spotlighting the rape, but others said they often feel unsafe on campus and that security officials did little to prevent the brutal attack.
"It did not surprise me that something horrific happened there. Something horrific has happened here before," Jessica Price, a teacher at Richmond High School, said at a school board meeting according to KGO. "We know that's a huge area where we've had gang violence and brutality in the past."
Baker lambasted school officials for doing little to break up a large group of men lingering near the gym where the dance was being held.
"I looked outside of the gym and I saw 12 to 15 guys, sitting there, with no [school] IDs," Baker angrily told the school meeting. "The officers, not only did they not check the IDs of those students or men sitting outside of our campus, but the security officers who are employed here did no checking either."
Baker, who has not spoken to the victim since the attack, says the girl's family is devastated and scared.
Students at Richmond met Thursday during second period, said Baker, to discuss their feelings about the attack.
"A lot of people are actually scared about what's going to happen to her," said Baker. "There is a lot of empathy and a lot of people who are scared that it went on for so long and that it could have been them."
A $20,000 reward is being offered by the Richmond Police Department to anyone who can provide information leading to more arrests in the case.