Bruins right winger Nathan Horton had some atoning to do after taking unnecessary interference penalties at the end of the first period and early in the second.

The Bruins penalty-kill unit and goalie Tim Thomas preserved a 1-0 deficit while Horton experienced four anxious minutes in the box.

Horton made good on his misdeeds when he scored the Bruins' first goal in last night's 3-1 victory over Tampa Bay in Game 5 of the Eastern Conference finals at the TD Garden.

The Bruins took a 3-2 lead in the best-of-seven series and can close it out tomorrow at the St. Pete Times Forum.

"Obviously, I didn't want to take penalties and I took a couple," said Horton. "The penalty kill was good and we fed off that.

"I've just got to watch it and play to that line and not go over it. I try to play my game, but not step over that line. After all my penalties, we got the momentum and everyone felt it and we just took off from there. Timmy (Thomas) was great again and that's what you need to win games. I know what the line is and those were a couple of tough calls. I'll try and get better on that and I'm working hard. I definitely didn't want to cost my team."

Nothing transpired in the first period that indicated the Bruins would go back to Florida with a series lead.