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KANSAS CITY, Mo. As investigators search for a motive to help explain why Chiefs linebacker Jovan Belcher killed his girlfriend and then himself, a discordant picture of the couple began to emerge.

A friend of Belcher s girlfriend, 22-year-old Kasandra M. Perkins, said they had lived apart briefly earlier in the year but had gotten back together by Thanksgiving.

Brianne (Bree-ahn-eh) York said Sunday the couple argued about normal couple stuff but that her friend was really happy about being a mom.

York thought there was some mistake when she learned Belcher had killed Perkins at the couple s home Saturday.

Police said Belcher then drove to Arrowhead Stadium, where he thanked his coach and fatally shot himself.

Belcher and Perkins had a 3-month-old daughter, Zoey.

Police didn t release any additional information Sunday.
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