On January 7, Christopher Melling and his daughter Aimee were found dead at their home in Burwell. Preliminary results show Christopher shot his daughter and took his own life after.
Wednesday afternoon Christopher Melling's brother Tom held a memorial at the American Legion in Gibbon.
This past week on social media, Tom has been asking the public to not come to any conclusions until the investigation is over.
"I don't believe that my brother was the primary cause of what happened that night, that's the primary reason I am pursuing this as much as I am. The finger is pointed far too quickly at my brother," said Tom Melling.
Garfield County Attorney Dale Crandall sent a statement Wednesday morning with an update on the investigation.
"As part of the current inquiry, investigators are looking into reports of prior incidents involving domestic disturbance," the statement said. "A final determination will not be made until test results are in and the investigation is concluded, a process expected to take several weeks."