A 20-year-old man is in custody after being arrested in connection with the stabbing death of his father. The incident occurred during a physical altercation between the suspect's parents. Authorities say the suspect intervened in the altercation, resulting in the fatal stabbing.

Alameda County Sheriff's officials are investigating the incident. The suspect's actions were reportedly a response to the physical confrontation between his mother and father. Further details about the incident are available from the authorities.

The investigation is ongoing, and more information can be found through official channels or the source publication.