Police spokeswoman Officer Michele Gigante said in a written statement that Edward K. Coleman and his girlfriend Luv C. Land apparently argued Friday evening, the last time their respective family members heard from the couple.
Officers discovered the bodies of the couple in their Natomas house Sunday morning after family members said they hadn't heard from them for nearly two days.
Michele Gigante said both had gunshot wounds and a firearm was found near the bodies.
Coleman, 36, was a Grant High School assistant football coach. Land was 28 years old.
Coleman's death has not been classified on the coroner's website. Land's death is listed as a homicide by the coroner's office.
Word of Coleman's death spread quickly through the Grant Pacers community. Grant High Principal Craig Murray said: "We don't know the details, but everyone is upset. It's just a tragedy. We want our kids to know we are there for them."
Murray said chaplains will be at the school today for students and staff.
Gigante said the bodies were found by officers in the home in the 2900 block of Holdrege Way around 8:40 a.m. on Sunday.
Coleman, a 1992 Grant graduate, was a star running back for the Pacers before heading to the University of Idaho. He was an assistant football and track and field coach at Grant the past 10 seasons.
He missed Friday's game against Oak Ridge High in El Dorado Hills to attend a friend's wedding, said Carl Reed, a teacher and coach at Grant High School in Del Paso Heights.
Coleman was working on his teaching credential, with the goal to teach at his alma mater, Reed said.
Photo captions: Top photo: Edward K. Coleman and his girlfriend Luv C. Land. Below, Grant High School football coach Ed Coleman, left, reassures a player as the team prepares to take on Long Beach Poly in the California Interscholastic Federation State Championship Open Division Bowl Game on Saturday, Dec. 20, 2008, at the Home Depot Center. Photo by Randall Benton / firstname.lastname@example.org