I was thinking about some things that I can't explain for my self.

1.Donna and Laura were together in Road House. Donna saw that Laura had some connection with Jaque. Why she didn't tell about him to agent Cooper?

2.The Road House is a place which everybody visit. Everybody knows Laura, everybody knows her like innocent girl, well in the scene in Road House she did't act like innocent....

3. Where were her parents the night that she goes to the Road House, dressing with clotes that student in Twin Peaks doesn't wear?

4. How Bobby did't understand that Laura meets Leo and Jaque and what is the connection with them forth, the cocaine and the 10 thousand dollars in Laura's depossite box?

I think you're confusing the Road House in Twin Peaks (Bang Bang Bar) with the roadhouse over the border in Canada that they visit in FWWM. Donna couldn't remember what happened there, because of the drug she was given.... As for Bobby, I don't think he wanted anyone in law enforcement to know about his connection to Leo, Jacques, or the cocaine trade.

I was thinking about some things that I can't explain for my self.

1.Donna and Laura were together in Road House. Donna saw that Laura had some connection with Jaque. Why she didn't tell about him to agent Cooper?

Good question. I have no idea why she didn't.

2.The Road House is a place which everybody visit. Everybody knows Laura, everybody knows her like innocent girl, well in the scene in Road House she did't act like innocent....

Good question. Perhaps the people in the Roadhouse were turning a blind eye to what was happening. Perhaps people vaguely knew what was happening but they did nothing.

3. Where were her parents the night that she goes to the Road House, dressing with clotes that student in Twin Peaks doesn't wear?

They were out dancing. Not sure where exactly. The Great Northern? Maybe they drove off to another town nearby?

4. How Bobby did't understand that Laura meets Leo and Jaque and what is the connection with them forth, the cocaine and the 10 thousand dollars in Laura's depossite box?

Bobby knew that Laura was associating with Leo and Jacques, but he just let it happen. Bobby and Laura had quite an open relationship. In fact, it was Bobby who introduced Laura to Leo in the first place, and then Leo introduced her to Jacques.

I was thinking about some things that I can't explain for my self.

1.Donna and Laura were together in Road House. Donna saw that Laura had some connection with Jaque. Why she didn't tell about him to agent Cooper?

2.The Road House is a place which everybody visit. Everybody knows Laura, everybody knows her like innocent girl, well in the scene in Road House she did't act like innocent....

3. Where were her parents the night that she goes to the Road House, dressing with clotes that student in Twin Peaks doesn't wear?

4. How Bobby did't understand that Laura meets Leo and Jaque and what is the connection with them forth, the cocaine and the 10 thousand dollars in Laura's depossite box?

1. My guess is that Donna wanted to figure everything out without the police. She says something to Maddy about 'James and I are the only ones who knew her and loved her enough to help her' or something.  The question should be- why didn't Donna tell James about Jacques and investigate him instead of Harold?

2. Ivan- I think nightingale is talking about picking up johns and french-kissing them right there, in front of God and everybody. You think someone would see her...

3. Remember when Donna tries to follow? Laura calls Sarah and Leland "Fred and Ginger" and Donna says "Dancing." Maybe at the Great Northern, or whatever Country Club Glenn Miller night is held at?

4. Fred is referencing the companion book, The Secret Diary of Laura Palmer.  I think Bobby clearly understands what's going on, and may suspect Leo killed her.