The provided sources appear to cover two distinct stories about violence prevention efforts rather than the same event.

The first article references an anonymous tip system that was launched following the Sandy Hook Elementary School shooting. According to the report, a group formed in response to that tragedy has been working to prevent similar violence and has received nearly 400,000 reports through their tip system. The organization has reportedly traveled across the country as part of their prevention efforts.

The second article covers a separate initiative in Oakland, California, where city officials report achieving a six-decade low in homicides. Oakland attributes this reduction in part to providing life coaches and other services to individuals considered most likely to become involved in gang-related shootings.

Both stories involve violence prevention programs, but they appear to describe different organizations, locations, and approaches to addressing public safety concerns. Additional reporting would be needed to verify if these initiatives are connected or represent separate efforts.