Kansas City Chiefs' linebacker Jovan Belcher spent the night at the apartment of another woman before he shot his girlfriend Kasandra Perkins to death and killed himself.

Belcher, 25, had dinner and drank with a woman named Brittni Glass at a tavern in Kansas City on Friday night. He reportedly dropped Glass at her house and fell asleep in his car outside Glass' building but around 2:30 am he went back into her building and left her house at around 6:45 am.

"I was with him that night, that's it," Glass told the Post on Monday.

Glass said she and Belcher were not in a relationship and declined to say exactly where he slept, according to the New York Post.

A neighbor also witnessed Belcher being with the woman.

"His Bentley was parked outside," a neighbor told the Post. "He went upstairs. He was drunk. He went up to see the girl.''

The latest account contradicts earlier reports that Belcher went into a rampage when his girlfriend Perkins arrived at their Kansas City home at 1 am from a Trey Songz concert.

According to Glass and neighbors, Belcher wasn't even home at 1 am.

Belcher shot Perkins multiple times on Saturday morning in front of his mother, then drove to the Chiefs' practice facility, thanked his coaches and killed himself in front of them.

It has also emerged that Belcher leaned over Perkins seconds after he killed her in their master bathroom, said he was sorry and kissed her on the forehead, according to a Police report cited by the Kansas City Star.

Belcher reportedly apologized to his mother, kissed his 3-month-old daughter and left his home and drove to the Kansas City Chiefs' practice facility.

When he arrived he reportedly told the team's General Manager Scott Piolo: "I did it," according to the Kansas City Star. "I killed her."

"I got to go," Belcher reportedly said. "I can't be here."

Then he knelt behind a vehicle, made the sign of the cross across his chest and shot himself in the head, according to the Star.

The families of the couple released statements on Monday, two days after the tragedy.

On behalf of the Perkins Family, we appreciate the outpouring of love and concern for our Kassandra 'Kasi' Perkins. Our hearts are truly broken for Kasi was a beloved daughter, granddaughter, sister, mother, cousin and friend," her family said.

"Please keep us in your hearts and prayers as well as the Belcher family for two lives were loss. Again we thank you for your support, our wish is for Kasi to be remembered for the love she shared with us all. Kasi will be truly missed!"

Belcher's relatives said:

"As a family, no words can express the sorrow we feel over the loss of Jovan and Kasandra."

he couple is survived by their 3-month-old daughter Zoey who will be raised by Belcher's mother in Long Island, according to multiple media reports.