2:03 PM: One man is in the hospital and one person in custody after a stabbing at a home in the 7500 block of 21st SW. Seattle Police say the 911 call came from a woman saying her 18 and 20-year-old sons were arguing – it somehow got out of hand and a third person, a 29-year-old man, ended up with a stab wound to his “upper back area.” One person was arrested; seven people were in the house at the time of the incident, we are told, and police are still sorting it all out.

ADDED 3:18 PM: Seattle Fire spokesperson Kyle Moore says the victim was in serious condition when taken to the hospital.