The "mentally unstable" gunman who shot and killed a construction worker, shot a farmer and fled in a truck is still at large.
Now Indiana police are asking for the public's help in finding the cold-blooded killer whose motives are still unclear.
"Some one out there has to know who this man is," a Lake County Sheriff's Roy Dominguez said at a Thursday morning press conference.
He announced the creation of a bi-state joint police task force to find the man. Dominguez said it will be a 24/7 operation.
The department has recieved about 100 tips on the killer, but cops need more info. They released an updated composite sketch of the suspect.
On Tuesday the unknown gunman shot and killed 45-year-old rolando Alonso of Hammond, Indiana after asking the construction worker about some unused wood at a construction site there. It was his second day on the job.