Would Israel arrest a Jewish terrorist with only Arab victims?

Ha'aretz - Avi Issacharoff
It's reasonable to assume that if Yaakov (Jack) Teitel had focused only on attacking Palestinians, he would have encountered few problems with law-enforcement authorities. His big mistake, it seems, was targeting non-Arabs as well.

Experience - and statistics - show that Israeli law enforcement is remarkably lax when it comes to tackling violence against Palestinians. Twelve years ago, Teitel confessed to killing two Arabs and then took a break from such activity. Sure, he was detained for questioning after the murder of shepherd Issa Mahamra, but he was released due to insufficient evidence. As with many other cases of murder and violence committed against Palestinians, the story of the shepherd from Yatta and the taxi driver from East Jerusalem disappeared into oblivion - until Teitel returned and attempted to harm Jews, bringing the wrath of public opinion, the Shin Bet security service and the Israel Police down on his head.

...For instance, at least six shooting attacks against Palestinians in 2001-2002 have remained unsolved. ... three members of the Tamaizi family were shot to death by a man in a skullcap, according to relatives. ... it's doubtful that Israelis remember that 3-month-old Dai Marwan Tamaizi, born after his parents underwent 14 years of fertility treatments, was killed that day - as were Mohammed Salameh Tamaizi, 27, an only child, and Mohammed Hilmi al-Tamaizi, 24, who was engaged to be married.

...Investigations by Palestinian-rights advocacy group Yesh Din has found that 90 percent of police investigations of cases in which Israelis are suspected of committing offenses against Palestinians in the West Bank are left unsolved and are closed. In a 2006 case, four settlers were suspected of beating an elderly Palestinian man with a rifle, leaving him unconscious for three weeks - but police didn't check the alibis of two of the suspects, and a third wasn't even questioned. Full story