Career
He has previously played for the Ireland national basketball team Between 2004 and 2009, Killeen played college basketball in the United States for Winthrop and Augusta State. Killeen spent his first season out of college in France, playing for Union Carquefou-Sainte Luce in 2009-2010.
In October 2010, Killeen had a one-game stint with the Westports KL Dragons before joining the Cheshire Jets in early December 2010.
He lasted a month with the Jets, appearing in just four games for the club In July 2013, Killeen signed with Beyssac Beaupuy Marmande for the 2013-2014 season, returning to France for a second stint.
He scored 329 points for the team In July 2014, Killeen signed with Templeogue for the 2014-2015 season, returning to the Premier League for a second stint.
He continued on with Templeogue in 2015-2016, but missed the first half of the season due to a knee injury.
