State Police are using a new resource in its search for a cop killer.
Troopers set up an email address for tips in the death of Bardstown Police Officer Jason Ellis.
Investigators say Ellis was gunned down on May 25th during an ambush on the Bluegrass Parkway.
State Police is asking the community for help in the case.
There's a reward fund $125,000 for information leading to an arrest.
The email address to send tips and information to State Police is: