San Jose police last week teamed with authorities in Stockton to arrest a pair of alleged drug dealers and seize large caches of illegal drugs, guns and ammunition.

A San Jose police academy recruit died by suicide using a city-issued handgun in late September — quietly rattling the department and highlighting the risk of arming cadets. The tragedy has also prompted questions about whether higher-ups missed any warning signs.

San Jose police said Lucien Cabrera, 19, built illegal guns in his San Jose home and brazenly marketed them on social media.

A Stockton man was arrested on suspicion of narcotics sales, and his girlfriend is accused of buying guns to circumvent his firearms prohibition.