Herbert Wigwe: Nigerian bank chief killed in US helicopter crash - BBC.com
- Herbert Wigwe: Nigerian bank chief killed in US helicopter crash BBC.com
- Nigeria mourns a major bank CEO killed in California helicopter crash Quartz
- Super Bowl Tragedy: Six Reportedly Dead In Helicopter Crash Yahoo Entertainment
- Helicopter carrying 6 people crashes in California desert near Las Vegas USA TODAY
- Helicopter crash kills 6 en route to Nevada on Super Bowl eve The Independent