Unrest around the deadly shooting of 17-year-old Trayvon Martin grew over the weekend, both in Portland and across the nation. Demonstrators took to North Portland's Peninsula Park on Saturday to raise their voices and hoodies, demanding justice in the case. (See video of the rally on The Skanner News Youtube channel.) In Black churches across the country, meanwhile, Trayvon's name was regularly invoked from the pulpit.

Here are more of the latest developments in the case:

-Today marks the first time city commissioners in Sanford, Fla., are convening since the city's police chief stepped down in the wake of the shooting. At a rally in Sanford today, Trayvon Martin's parents are expected to be joined by NFL players Ray Lewis and Santonio Holmes as well as Jesse Jackson, Al Sharpton and ACLU and Urban League leaders.

-Jesse Washington, an African-American writer for the Associated Press, wrote a touching commentary about how he and other Black parents are challenged to talk to their sons about what happened to Trayvon Martin and why young Black males need to carry a "racial Spidey sense" to know when profiling is occurring and what to do in response.

-This morning, a man named Joe Oliver, identified as a friend of shooter George Zimmerman, appeared on national news programs to stand up for his companion. In interviews, Oliver (who is Black) portrays the 28-year-old Zimmerman as remorseful and a person who was acting in legitimate self-defense.

-Legal experts are also beginning to articulate the difficulties that could arise in efforts to convict Zimmerman (if a charge is even filed, in fact, it could still be weeks away). And ABC News says it has been contacted by an "eye witness" who saw Martin knock down and bloody Zimmerman before the single fatal shot was fired: