Ottawa police have asked for help finding a fourth person of interest in an alleged conspiracy to shoot a man preparing to testify in a Lawrence aggravated battery case.

Police said Tuesday they are seeking information on Lee Roy House Jr., a man prosecutors have alleged had a role in the plot to kill Ottawa resident Michael Miller before he could take the stand.

Miller was shot repeatedly Dec. 19 in the street outside his home but survived his wounds.

According to charges filed by the Franklin County prosecutor’s office last week, House was one of three people who allegedly drove to Miller’s house that night to shoot him.

Prosecutors last week charged Kay F. Gaillard-Taylor, Lisa K. Winter and Jeffrey Campbell, all of Lawrence, with attempted murder and conspiracy. Although House is mentioned in those records as allegedly taking part in the plot, prosecutors haven’t charged him.

Police said Tuesday they were looking for House primarily in Lawrence but were not sure of his most recent whereabouts. He has been known to frequent Douglas, Franklin and Atchison counties, police said, and records show he has convictions in all three counties.

Ottawa police Capt. Randy Allen said House should be considered dangerous.

“Considering that he’s wanted for questioning in a case like this, sure,” Allen said. “It’s not a shoplifting case.”

House is described as medium height and build with reddish hair, blue eyes and glasses.

Anyone with information about House’s location is asked to call the TIPS hot line at (888) 311-8477. People can report to the hotline anonymously.

Miller was shot the night before he was scheduled to testify against Lawrence resident Louis G. Galloway in an aggravated battery trial.

Galloway was charged last year with battering Miller in an alleged home burglary at Miller’s former residence in Lawrence.

When asked previously if the shooting was a result of Galloway’s pending trial, Franklin County Attorney Heather Jones said, “I don’t think this was a coincidence.”

Although House is the fourth and final person mentioned in prosecutor’s charges, Allen said there are still “four or five” people police need to find and interview before they’ll be satisfied with the investigation.

“We still have leads to follow,” he said. “(House) is just the one we’re looking for now.”