In addition to murder, Silva is also charged with three counts of attempted murder and one count of attempted extortion. He is a member of the 18th Street gang. Prosecutors said gang members tried to extort money from outdoor vendors on Sept. 1, and one vendor refused to pay. Gang members allegedly returned to MacArthur Park on Saturday and opened fire, striking one vendor, 37-year-old Francisco Clemente, at least twice. The city is offering a $75,000 reward for information in the case. Police believe 50 to 100 people witnessed the shooting. “This is a devastating situation and it is our hope that someone in the community knows or has information about who committed this crime,” said Los Angeles police Assistant Chief James McDonnell. Anyone with information about the case can call detectives at (213) 485-2531 between 7 a.m. and 8 p.m. or (877) LAWFULL after-hours. A 19-year-old reputed gang member was charged today with murder and other crimes in connection with the shooting death of a 3-week-old baby Saturday near MacArthur Park. Luis Silva was ordered held without bail in the killing of Luis Angel Garcia, who was struck by a stray bullet as his mother pushed his stroller. His arraignment was set for Oct. 2. The murder charge alleges the special circumstance allegation that the killing was gang-related. Prosecutors have not yet decided if they will seek the death penalty. It was unclear whether Silva actually fired the shot that killed the boy. Police are still searching for other suspects. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!