The family of Monday's double homicide victims in Cleveland opens up about the mother and son they never imagined having to bury so soon.

Rachael Johnson, her 5-year-old son Colton and their brand new family dog were all shot and killed Monday. Police arrested her boyfriend of a year, Ross Anderson, and charged him with two counts of first degree murder.

Read more | Suspect in custody in Cleveland double homicide charged

Rachael's father Timothy Lynch talked to Channel 3 about his memories of his daughter and grandson. Colton was in pre-Kindergarten at Westside Christian Academy.

"As the pictures show, this is her, this is how she always appeared, she always had a smile on her face," Lynch said.

Lynch said his daughter and Colton were inseparable and always outdoors. She was an adventurous hiker, climber and kayaker and Colton seemed to be taking after his mother.

"Memories like that will never go away, they'll always be there and I'll always remember her for what she was. But, I'm going to miss her. She was the love of my life, my only daughter."

Rachael worked as a surgery technician at a pet hospital on Highway 58. Her mother said she recently finished her Masters in Biology and taught in a lab part-time as an adjunct professor at Chattanooga State. She drove up to Kentucky Sunday to adopt a German Shepherd dog the day before she died. Police say Anderson also shot and killed that dog.

"That's just what she was, that's who she was," he said. "I'm never going to be able to enjoy that time with her that I used to get, that I used to have with her. And, I don't know how I'm going to do that. I don't know how I'm going to get through not having her in my life anymore."

Lynch said Rachael "loved the Lord with all her heart" and that his faith and his daughter's spirit will keep him strong through the grief.

"I've never experienced this before. You read about it and you hear about it and never think it's going to be you but this time it was," he said. "It's going to be difficult for awhile. There's just some things you can't put back in place."

Funeral arrangements have been made. The viewing will be Friday from 5pm - 9pm at Companion Funeral and Cremation Service at 2514 Georgetown Road in Cleveland. The funeral will be Saturday at 1pm.

The family has created a GoFundMe account to help raise money for the funeral expenses.

HOW TO HELP | GoFundMe page for funeral expenses