Officials from Oikos University and local leaders offered condolences on the school steps decorated with flowers. Photos of the six students and school secretary who were slain lined the entrance, and sympathy cards were tacked to the boarded-up main doors.
One Goh, 43, has been charged with seven counts of murder and three attempted murder counts in the campus shooting. He has not yet entered a plea.
Police believe Goh, a former student at the school, returned for revenge on April 2. He allegedly started randomly firing at students, killing seven people and wounding three.
Police have said Goh was targeting an administrator who had been involved in his financial dispute with the school. When he learned she wasn't there, police say, he began shooting in classrooms. Police are also investigating whether Goh might have been seeking multiple targets.
Also in attendance at the memorial Tuesday were Oakland Mayor Jean Quan and Rep. Barbara Lee (D-Calif.). They reiterated that the entire region is behind the grieving campus.
Oikos officials also announced the creation of a fund to support the victims and their families.
The Associated Press contributed to this report.