Former US President Barack Obama sent a letter, Stevie Wonder sang, and Snoop Dogg called slain rapper Nipsey Hussle a "peace advocate" at a Los Angeles memorial on Thursday attended by family members, friends and thousands of fans. Obama wrote a letter to the family that was read by Karen Civil, Hussle's friend and business partner. The former president praised Hussle's attempts to revitalize the gang-plagued neighborhood where he was raised, and where he was gunned down last month. — Reuters