Karpiniuk was an assistant to the President of Kołobrzeg
Henryk Bienowski before becoming politically independent. He was elected to the
Sejm on
25 September 2005, getting 9767 votes in the
Koszalin constituency, as a candidate from the
Civic Platform list. In the
2007 parliamentary election, he ran on the same ticket in the same district as second on the list, and was elected to the Sejm with 25,827 votes (incl. 8169 in Kołobrzeg). He was listed on the flight manifest of the
Tupolev Tu-154 of the
36th Special Aviation Regiment carrying the
President of Poland Lech Kaczyński which crashed near
Smolensk-North airport near Pechersk near
Smolensk,
Russia, on 10 April 2010, killing all on board. To honor his memory, in April 2010, the City Council of Kołobrzeg passed the resolution to name the newly built football stadium 'The Sebastian Karpiniuk Municipal Football Stadium' (
Miejski Stadion Piłkarski im. Sebastiana Karpiniuka). On 16 April 2010, Karpiniuk was
posthumously awarded the Commander's Cross of the
Order of Polonia Restituta. == Personal life ==