Coach of Dutch No.1 tennis star arrested as part of murder investigation after Miami Open - Mirror Online
Top tennis coach denies murdering travel tycoon in court - DutchNews.nl
Tenniscoach voor de rechter wegens moord op zakenman Everink
Oud-tenniscoach krijgt 18 jaar cel voor moord op Koen Everink
Haase's coach arrested as murder suspect
Zo vermoordde Mark de J. zijn gokmaatje Koen Everink | RTL Nieuws
Coach of tennis player Robin Haase arrested in connection with murder of Dutch millionaire – New York Daily News
The shocking murder that's rocked the tennis world
OM verdenkt tenniscoach Mark de J. van moord op Koen Everink | RTL Nieuws
Robin Haase's tennis coach arrested on suspicion of murder
Reconstructie: de moord op zakenman Koen Everink - EW
Robin Haase's coach arrested in connection with murder of Dutch businessman | Tennis | The Guardian
Tennis coach gets 18 years for businessman Everink's murder | NL Times
Oud-tenniscoach Mark de J. krijgt 18 jaar cel voor de moord op zakenman Koen Everink
Mark de J. definitief veroordeeld voor moord op Koen Everink
Sports Illustrated on Twitter: "In 2016, Koen Everink, a team member of the tennis player Robin Haase, was found dead in his home. What unfolded next turned the pro's world upside down:
Tenniscoach De J. opgepakt, 'rustige en serieuze jongen' | RTL Nieuws
Robin Haase Coach Arrested In Murder Case | Talk Tennis
Vader Dirk en broer Stefan: 'Mark kán Everink niet vermoord hebben' | Binnenland | AD.nl