So far , only one person has been arrested in the March 21 rampage at Red Lake High School , the nation 's deadliest school shooting since the one at Columbine High School in Colorado in 1999 .
Colorado /location/location/contains Columbine High School
RB RB , RB CD NN VBZ VBN VBN IN DT NNP CD NN IN NNP NNP NNP NNP , DT NN POS JJS NN NN IN DT CD IN NNP NNP NNP IN NNP IN CD .
Colorado
LOCATION
Columbine High School
ORGANIZATION
/location/location/contains