Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: A manhunt was underway in western Pennsylvania early Saturday for a suspect in the fatal shooting of  a rookie police officer  Friday night in a town outside Pittsburgh.
 Officer Brian Shaw  had been with the New Kensington  Pa.  police department for less than a year  police Chief Jim Klein said at a news conference  the Pittsburgh Post-Gazette reported.
Although  Shaw  was new to the force   his  impact seemed to be felt throughout the community  as evident in WTAEâs David Kaplanâs tweet.
Ciara Herbst  a former co-worker and friend of  Shaw   described  him  as âthe most genuine guyâ who âhonestly cared about everyone â reported the Pittsburgh Tribune Review.
" He  was a great family man and always thought about  his  community  and always wanted to help anyone  he  could " classmate David Fleck told the paper.
Allie Wilhelm   Shawâs friend   told the Tribune Review that becoming a police officer was âall  he  talked aboutâ since  he  was in  his  late teens  telling  her   'It's my calling.'"
Police did not say if  Shaw  returned fire.
 Shaw  was taken to a nearby hospital and later pronounced dead.

Police officer slain near Pittsburgh is ID'd; gunman still at large