A Jerusalem court on Wednesday found Jack Teitel, known locally as "the Jewish terrorist", guilty of two counts of murder, two attempted murders, and a string of other violent crimes.
In the late 1990s, Teitel murdered two Palestinian Arabs, one a bus driver and the other a shepherd.
A decade later, in 2008, Teitel planted a bomb disguised as a Purim gift basket at the doorstep of a Messianic Jewish pastor David Ortiz in the Samarian town of Ariel. The bomb critically wounded the Ortiz's son, then 15-year-old Ami Ortiz, who has since made a full recovery.
It was later revealed that Teitel had connections to extremist groups in Israel that regularly target Messianic Jews.
That same year, Teitel also attempted to bomb prominent left-wing professor Ze'ev Sternhell.
Teitel was arrested in 2009, and for years his defense team argued that the killer was mentally unstable, and therefore not responsible for his actions. In its decision on Wednesday, the court rejected that argument, and stated that Teitel would be sentenced for premeditated and willful crimes.