Jovan Belcher 911 Tape -- 'I Don't Know How Many Times He Shot Her'

Jovan Belcher's mother frantically called 911 moments after the Kansas City Chiefs football player shot his girlfriend Kasandra Perkins multiple times Saturday morning ... pleading with the operator to send help ASAP while Jovan's newborn baby cried hysterically in the background.

During the call, Jovan's mother told the operator "Oh my God. Oh my God, Cassie ... The baby is crying ... get the ambulance here please!"

She continued "She is still breathing but barely. Please hurry. I don't know how many times he shot her. They were arguing."

The 911 operator asked if Kasandra was bleeding -- Belcher's mother replied, "Yes she is."

Kasandra was rushed to a nearby hospital where she was later pronounced dead.

As for Belcher, he drove to the Kansas City Chiefs football facility at Arrowhead Stadium and shot himself in the head in front of team staff.