The City Council passed a resolution Wednesday that will offer an additional $20,000 reward for information leading to arrests and convictions in each of five attacks on UCLA researchers since 2006.
The most recent attack was March 7. Police said animal rights extremists destroyed UCLA neuroscientist J. David Jentsch's car because he uses and sometimes kills vervet monkeys in his medical research.
The other attacks include incidents in June 2006, June 2007 and February 2008, when incendiary devices were left on the front porches of researchers' homes.
In November 2008, extremists destroyed the car of researcher Goran Lacan, authorities said.
Several other agencies, including the FBI, have already offered a combined reward of about $100,000 for each case.
The original motion, which was authored by Councilman Jack Weiss, still needs to be signed by the mayor to take effect.