Police were called just before 4 a.m. on Sunday to an apartment building near the 1300 block of Shawn Drive.
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They found a male victim with at least one stab wound.
He was taken to the hospital where he later died.
MORE: Surveillance video shows moments before SJ couple was hit, killed by suspect's car
Video shows moments before SJ couple was hit, killed by suspect's car
Police haven't said the relationship between the man and woman.
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Streets around Shawn Drive will be closed for several hours as officers investigate.
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