Andre Margain, 35, was found shot to death on June 7, 2018, in the 16000 block of Bayberry Lane in unincorporated Alameda County. Deputies arrived around 7 p.m.; Margain was pronounced dead shortly after their arrival. Initial reports described multiple gunshot wounds and no immediately identified suspect or clear motive.

Investigators later identified R. Zacharia Grubbs, 48, as the primary suspect. Prosecutors say Grubbs and Margain had an encounter at a stoplight in San Leandro while Margain was on a motorcycle and Grubbs was driving a minivan. Grubbs allegedly attempted to sideswipe Margain, who sped away; Grubbs then pursued him into a residential area and shot him with a 9 mm handgun. Grubbs reportedly claimed Margain had robbed him at gunpoint a week earlier.

What can readers add about Margain, his movements that evening, or anyone who might have seen the pursuit or the shooting?