People came by about every 10 minutes to leave notes or children's toys. Traffic passing beneath the overpass on the H-1 freeway slowed near the site, and cars honked and waved at the people standing overhead at the memorial.

Mike Walters, 27, who lives at the 410 Magellan apartment complex just across the street from the entrance to the overpass, stopped by to add a yellow Care Bear to the memorial.

Walters said he saw Higa run up the street yesterday pursued by a bicyclist.

He saw the police gather and the white sheet covering the toddler's body on the freeway, and watched events unfold through the afternoon from his seventh-floor apartment.

"This is kind of a quiet street, aside from the traffic," he said. "For something like this to happen here ... it's terrible."

Walters said he is still looking for answers.

"It's unnerving," he said. "Someone should find out what happened to him (Higa) and make sure he doesn't do it again. It's a failure of the health system and the justice system."

Azure Ingebrethsen, 32, came from Pearl City with her 1-year-old son, Justin, to pay her respects and leave a balloon and a bear with angel wings.