Los Angeles police say two suspects have been arrested for the murder of 5-year-old Aaron Shannon, and are being held without bail. Leonard Hall Jr., 21, was taken into custody today (Friday) about at 2:10 a.m. at an apartment in the 200 block of West. 27th Str. Marcus Denson, 18, was arrested Thursday evening by Sheriff’s deputies in the 1100 block of East 83rd Street. Law enforcement officials say both suspects are active gang members.