The final argument: Kansas City football star Jovan Belcher 'fought with his lover when she came back late from Trey Songz R&B concert' hours before he killed her then shot himself in front of his coaches.

• Kansas City Chiefs linebacker Jovan Belcher, 25, shot and killed his girlfriend Kasandra Perkins, 22, at their home this morning
• Came after pair argued on Friday when she attended Trey Songz concert
• The couple had a baby together less than three months ago
• He then traveled to a practice area at the team's Arrowhead stadium
• First he thanked his coach and general manager for everything they had done for him and then he shot himself in the head in front of them
• Sunday's home game against the Carolina Panthers will go ahead

NFL star Jovan Belcher had argued with his girlfriend after she came home late from an R&B concert the night before he shot her dead then drove to his team's stadium and committed suicide in front of his coach and general manager, it has emerged.The 25-year-old Kansas City Chiefs linebacker fatally shot 22-year-old Kasandra Perkins early on Saturday morning, then killed himself in the presence of Chiefs staff after first thanking them for everything they had done for him, police said.
The couple lived together and three months ago had a baby together on September 11 - but a friend said they quarrelled frequently, and added that they fought when Perkins arrived home at 1am after attending a performance by Trey Songz.
Authorities did not confirm a possible motive for the murder-suicide, which stunned the team and came one day before a home game against the Carolina Panthers. The NFL said the game would go on as scheduled.

 
  Kansas City Chiefs linebacker Jovan Belcher, 25, shot and killed his girlfriend and then himself on Saturday morning.


  Happy family: Jovan Belcher killed his girlfriend Kasandra Perkins before shooting himself at the Kansas City Chiefs' stadium on Saturday morning.



   Row: The couple apparently argued on Friday night after Perkins attended a concert by Trey Songz, pictured.

Judging from pictures posted on Kasandra's Facebook page, the young couple had appeared to be happy and in love following the birth of their first child. 
'Jovan and Kasandra always seemed to be in love. In fact, when Kasandra got pregnant, she and Jovan were ecstatic. Ever since the baby was born in September, the two couldn’t have seemed happier together,' a member of the Perkin's family told TMZ.

  
  Crime scene: Investigators stand outside an Independence, Mo., house where police say Kansas City Chiefs linebacker Jovan Belcher fatally shot his girlfriend on Saturday morning.

   On Facebook, a profile for Kasandra Perkins includes pictures of her and Belcher with their three month old baby.

 

  

    Originally from Texas, Kasandra Perkins had moved to Missouri to be with Belcher.

Jovan was a happy, proud father, with pictures of his baby on his Facebook page,' Linta told SI.coma's Peter King in a phone call on Saturday afternoon. 'This is shocking. Something went crazy wrong, and we'll probably never know what it is.' 'Never until four hours ago did I think Jovan was anything but a model citizen,' Linta told King.

'He came to my youth clinics in the offseason and worked with kids. He was a gracious, unselfish, hard-working, dedicated kid -- very, very caring of some of the underprivileged kids who came to the clinics. I saw him in a real positive way. 'I never take on anyone as a client I wouldn't be proud to take home and spend time with my wife and kids. Jovan was one of those type of people. 'There's no word for this other than shocking. That's all I can think of.'


 

  Grieving: Belcher's friends and relatives gathered outside his family home in West Babylon, New York.

  Comfort: Two people embrace outside Belcher's home, hung with jerseys from the teams he played for.

 
      Toast: Mourners drink to Belcher's memory after receiving news of his death on Saturday.

 

  Belcher #59 stretches before a game against the Oakland Raiders at Arrowhead Stadium in 2009.

 

  

  Belcher had been the Chiefs starting inside linebacker for the last two seasons after going undrafted in 2009.

  

   Before killing himself, Belcher thanked Kansas City Chiefs coach Romeo Crennel for everything he had done for him.

 

 

      The body of Belcher's girlfriend was taken to The University of Kansas Hospital.

The season has been a massive disappointment for the Chiefs, who were expected to contend for the AFC West title.

But they're just 1-10 and mired in an eight-game losing streak that has been marked by devastating injuries and fan upheaval, with constant calls the past few weeks for general manager Scott Pioli and coach Romeo Crennel to be fired.

The Chiefs have been ravaged by injuries, led the league in turnovers, can't settle on a quarterback and are dealing with a full-fledged fan rebellion. The Twitter account for a fan group known as "Save Our Chiefs" recently surpassed 80,000 followers, about 17,000 more than the announced crowd at a recent game.

Things have been so bad this season that Crennel fired himself as defensive coordinator.

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