Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) A suspect in shootings in Maryland and Delaware on Wednesday that left three people dead and three others injured was caught in Delaware after a manhunt, authorities said. Radee Labeeb Prince, 37, is accused of killing three people and wounding two others at his job in Maryland on Wednesday morning. Police say he shot a sixth person about two hours later at a Wilmington, Delaware, car dealership. In the late afternoon, authorities zeroed in on the suspected gunman's vehicle -- a 2008 black GMC Acadia SUV -- about 15 miles from the scene of the second shooting. A tipster saw Prince leave the SUV and walk toward Glasgow High School in Newark, Delaware, said Wilmington Police Chief Robert Tracy.ATF agents find suspect walking in a neighborhood, smoking a cigar, a source saysSuspected gunman killed 3 people, injured 2 others at his workplace, police say 
 Question:Tracy said _ has a lengthy criminal history, including 42 arrests, mostly for probation violations, and 15 felony convictions.

Radee Labeeb Prince