The murder of Shelly Dadon of Afula is still being investigated as either a nationalist or criminal murder, with no indications tilting the probe decisively in either direction, police and Shin Bet security service said Sunday.

Dadon, 20, was found stabbed to death on May 1 in Migdal Ha’emek, where she had gone for a job interview that never took place. Last week Public Security Minister Yitzhak Aharonovitch announced a dramatic development in the investigation, but a gag order was imposed on details of the probe until the end of the month.

Whatever that development was apparently did not point to a motive for the slaying, which observers say slightly strengthens the case for it being a terrorist murder.

About 2,000 people marched in Afula Saturday night in Dadon’s memory. According to an organizer the rally was meant to send a public message urging the Israeli government to tighten security and act more forcefully against violence.

“Dadon’s family stands behind the rally and its cause,” he said. “We call on the government to fight against every sort of violence, whether political or not, and punish all murderers harshly, whether they’re Arab or Jewish.”

Many marchers wore red gloves and echoed chants of “death to the murderers” and “Shelly’s blood is my blood.” Others, believing the attack as politically motivated, attacked the Israeli-Palestinian peace process, calling to “stop the release of terrorists.”

The demonstrators resented Afula Mayor Avi Alkabetz’s decision not to attend the rally and booed loudly as Yitzhak Miron, the deputy mayor, took the stage.

“It’s the government’s responsibility to guarantee the safety of its citizens,” Miron said. “We shouldn’t be afraid of murderers, they should be afraid of us. A murderer should not be allowed to leave prison.”