Pleasanton police on Monday identified the victim a local man was suspected of fatally shooting on Friday as his 61-year-old father.
Officers arrested Lucas Chan, 28, Friday night after finding a man, later identified as his father, Lance Chan, with a gunshot wound near the 4600 block of Helpert Court in the East Bay city. The father died at a local hospital, and his son was booked into Santa Rita Jail on suspicion of killing his father, police said.
Investigators believe the pair were arguing before the shooting…