One brother liked to party and chase girls. After high school, moved by what he saw as his patriotic duty, he enlisted in the U.S. Navy and received two medals recognizing his contributions to "the global war on terror."
The other was deeply religious and became increasingly intolerant, ultimately nursing a growing hatred that led him, along with his wife, to open fire on a San Bernardino holiday party last week in what law enforcement officials have termed a terrorist attack.
Syed Raheel Farook and his younger brother, Syed Rizwan Farook, grew up in the same house, attended the same high school two years apart and, as teenagers, often socialized in the same groups. But as they grew older their paths diverged.