KALIHI, Hawaii -- A week after a Kalihi teen was killed, a crowd of 200 honored her with a silent march on Monday night.

Iris Rodrigues-Kaikana graduated from McKinley High School in June. She had plans to start college this month.

But her promising future was snuffed out when she was strangled last week. The killing struck a nerve in her community.

A sea of silent marchers circled the State Capitol on Monday led by Iris Rodrigues-Kaikana's father, her family and lawmakers.

Mourners clutched homemade posters plastered with recent photos and loving messages. About a dozen police officers in uniform rounded out the huge crowd.

Police believe the 18-year-old was killed the night of Aug. 23 or the morning of Aug. 24.

A woman picking flowers discovered the girl's nude body at 7:30 a.m. Aug. 24. Police said Rodrigues-Kaikana was lying face down in an alley next to the Kamehameha Housing project, across from Farrington High School.

Police are still searching for a killer.

The silent march gave family members, friends and people who never even knew her a chance to express their sorrow and call for justice.

"Having this walk in pursuit of justice is very important," said Art Costas, whose daughter was killed in 1984.

A news article drew Costas to the Rodrigues family.

"Unfortunately, we have similar emotions," he said. "My hope now is that this person is apprehended and the grieving process can begin."

The Rodrigues family said the grieving and healing have already begun thanks to the outpouring of support.

"Family and all others that my daughter Iris Napuanani Rodrigues-Kaikana has touched in her years as an angel growing up," he said.

Rodrigues-Kaikana's cousin Darren Weaver said he had a message for other teens.

"All you teenagers, look at your mom and look at your dad and promise tonight that you can tell them that you love them," he said. "And look at them in the eyes and share your lives with them, too."

Crimestoppers is offering a $1,000 reward for information that leads to the arrest of a suspect in this case. Lawmakers and the community have also donated money to this fund. Late Monday afternoon, Duane "Dog" Chapman and his wife Beth added $10,000 to the reward fund.