BROTHERS: Alvin Williams wasn’t shy when asked...

BROTHERS: Alvin Williams wasn’t shy when asked about his role in the football education of his younger brother, Kevin. The boys played in the San Fernando High School backfield in the late 1970s. Kevin, who went on to star at USC, died this week in the Cajon Pass train wreck. (B1) . . . So what did the elder boy teach the younger one? “Everything he knows,” Alvin said Saturday.

PARENTS: When their son was murdered five years ago, Lin and Clark Squires of Northridge channeled their grief into bolstering community-based policing in Los Angeles. They founded Mad About Rising Crime--group whose acronym, MARC, spells out their son’s name. . . . To help them lobby Congress, call (818) 368-1112.

GET ON BOARD: The recent snowfall in local mountains has snowboarders amped. And they don’t need wheels to start sliding. A couple of ski clubs based in Thousand Oaks and at Pierce College provide transportation, instruction and lift tickets. (Valley Briefing, B2) . . . For posers and gapers whose vocabulary bonks big-time, the briefing includes a glossary of hard-core lingo.

DARK ART: To learn how horror can be transformed by art into enlightenment, spend a few hours with Sidonia Lax in West Hills. She’s a docent at a Holocaust exhibit this month at the Bernard Milken Jewish Community Campus. (B1) . . . A survivor of six death camps, Lax explained why she still talks about the difficult subject: “The force of education is more important than my pain.”