Flying over the ESPY Awards was a small plane carrying a banner bearing an enigmatic message meant for Prince Harry. About an hour before the event started, the plane passed above Prince Harry getting ready to accept the military accolade, the Pat Tillman Award.

"Prince Harry: Investigate Mum's Death" the banner said. It is yet unknown why the message is meant to be sent or the identity of the donor of it. This event fuels more interest in Prince Harry as he gets ready to accept the award at Los Angeles' Dolby Theatre.

Serena Williams, the tennis great hosting the event, made an early red carpet arrival. Her blonde hair was softly flowing in a silver and black gown, and she looked great.

The debate about Prince Harry's award follows weeks after Mary, Pat Tillman's mother, objected to the choice. Mary Tillman told DailyMail.com she was surprised and disappointed her son's prize was going to "such a controversial and divisive figure." She also said she felt there were more worthy recipients and that she was not contacted regarding the winner.

Mary Tillman underlined the need of appreciating people without Prince Harry's riches, contacts, and means of support The award is named for former NFL player Pat Tillman, who quit his profession to join the army following 9/11 and passed away in Afghanistan in 2004.

ESPN responded to Mary's comments by defending their decision, saying Prince Harry was chosen especially for the efforts of The Invictus Games Foundation.