2111
and one person whose suit would be blocked is denise johnson if the legislation goes through , the widow of bus driver conrad johnson , the last person killed in the washington , d . c . sniper attacks .
 person: plaintiff
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: sue 
  Option: plaintiff, adjudicator, defendant, place 
Text: {0} 
Answer:
 person: plaintiff