Both were charged with felony murder and intensified assault.
State investigators earlier stated the father and child had actually followed Mr Arbery and challenged him with two firearms, and the more youthful McMichael shot and killed him.
Mr Arbery would have turned 26 today. Rallies are taking place beyond courthouses in Glynn County and in neighbouring Jacksonville, Florida.
Online, fans of Mr Arbery are using the hashtag #IRunWithMaud, sharing photos and running 2.23 miles (3.6 km) in remembrance of the day he died, 23 February.
What did Trump say?
Speaking on the Fox & Pals programme on Friday morning, the president said he had seen the video footage, which he described as “unpleasant” to anyone who watched it.
Mr Trump stated the state’s guv and police would be looking at the case “very highly”.
When asked about the racial problems at play in the case, the president said “justice getting done is the important things that solves that issue”.
” But it’s a