James Pickens, 35, was booked into jail on suspicion of murder and attempted murder and is being held in lieu of $1 million.
The shootings began around 3 p.m. Thursday at a park near Woodbine Street and Mentone Avenue. One person was killed and the other was taken to a local hospital. The man killed has been identified as 27-year-old Justin Aguilar.
The second shooting happened about a block away at Regent Street and Clarington Avenue. One victim was taken to a nearby hospital in critical condition. Several blocks away at a 7-Eleven near National Place and Overland Avenue, two more victims were found.
Two of the three non-critical victims were released after receiving treatment at the hospital.
It is unclear what prompted the incidents or if they were gang-related. An investigation is ongoing.
Anyone with information is asked to contact the Los Angeles Police Department West Bureau detectives at (213) 382-9470.
City News Service contributed to this report.