A Suisun City man was stabbed early Saturday in Vallejo after he asked his assailant to quiet down.
Vallejo police were originally notified of the incident by Sutter Solano Medical Center staff, which called them reporting the stabbing victim had just walked into the emergency room.
The 30-year-old victim had been visiting his girlfriend at a nearby apartment complex in the 2600 block of Springs Road, police said.
At about 3 a.m., the man, his girlfriend and their baby were sleeping when he heard an altercation outside the apartment, police said.
Worried the baby might wake up, the man walked outside to ask the noisemakers to quiet down. But upon confronting a man who had been arguing with a woman, the man abruptly turned around and began attacking the victim, police said.
At some point during the struggle, the victim felt a hard stabbing pressure on his body, but didn't realize he had been stabbed until after the other man had fled, police said.
That's when his girlfriend came out of her apartment and asked about the blood on his shirt, which he lifted up and discovered a stab wound that was bleeding profusely, police said.The girlfriend drove him to the hospital, where he was treated and released.
He described his assailant as a black male between 30 and 40 years old, 5 foot eight inches tall with a thin build and wearing a black leather jacket.