Be a detective!
This is the second mission from the mission series, Unbelievable Cases.
Mark, a cop is found murdered in his mansion. Julius, this time unravels the mystry behind this murder.What you, the players have to do is to find the location of the murderer in the end. If you are not sucessful, then dont worry I will post the solution of this mission in gtaforums topic, after 3 days till then keep thinking!
Check out the solution here-
http://www.gtaforums.com/index.php?showtopic=427337