The threesome responded with three of the team's four third-period goals.
Todd Simpson's third-period goal, his first of the season, cut the lead to 4-2.
Lowell, which had not won this season, broke out with four third-period goals to take a 7-5 lead.
Two early third-period goals took the Panthers out of this match.
His third-period goal Thursday night tied the score at 2-2.
His third-period goal on the power play cut the Jets' lead to 3-2.
He should also have been credited with a third-period goal.
He also had an assist on a third-period goal that gave the Capitals six in a game for the first time this season.
They had one shot on goal in the first period and needed three third-period goals to salvage a tie.
Richter shook off the third-period goals to improve to 7-1-0 in his last eight games.