The draw behind closed doors

After the wiretaps, the referee draw moved behind closed doors, with a notary and witnesses. Behind closed doors, the golden whistle disappeared. Some clues in this case come as riddles. If one stumps you, a hint will solve it. Eight people and one whistle, one per row and one per column. Almost nothing is said directly: you'll have to cross everything.

Suspects

• Augusto, the notary: He certifies that the draw is clean. He also certified that the whistle was there beforehand.
• Benigna, the clerk who holds the bag: She has held the bag of balls for twenty years. She says she has never looked inside.
• Carmindo, the referee on duty: His name came out of the draw for the third week running. He says it's luck.
• Dulcinda, the federation's witness: She watched the whole draw. She only blinked once, and that was the moment.
• Ezequiel, the visiting club's director: He demanded a draw behind closed doors. Now he demands to know what happened inside.
• Florinda, the reporter left outside: She stayed outside the closed door with her ear pressed against it. She heard a whistle.
• Gil, the door guard: He shut the door, as he was told. Nobody told him not to open it.
• Hilária, the bar lady: She serves coffee with milk behind closed doors. She has never served so much since the wiretaps.