Floral tributes have been left near the Park Hotel in Linthorpe, where 23-year-old Benji Bolsenbroek was assaulted at the weekend.
The messages include:
Always in our hearts."
"Sadly missed. Such a good lad."
"Miss you. Gone to the angels now."
More top news
Held along the city's coastline at Roker and Seaburn, the 28th Airshow has seen a major programme of air, land and sea displays.
A plane carrying David Moyes and the Sunderland AFC squad was force to make an emergency landing due to an engine failure
Emma Jesson brings you Sunday night's forecast