The second suspect sought in a Thursday afternoon shooting in northern Santa Maria is now in custody, Santa Maria police said late Thursday.

Robert Ruiz Sr., 54, was arrested after turning himself in at the Santa Maria Police Department at 11 p.m. Thursday. Police said he would be booked at the Santa Barbara County Jail for attempted murder.

Earlier in the day, Robert D. Ruiz, 34, whom police identified as the son of Robert Ruiz Sr., was taken into custody in connection with the shooting.

Two males were hospitalized with serious injuries following the double shooting Thursday afternoon. The shooting -- the third of the month in Santa Maria -- was initially reported around 3:30 p.m. near the 800 block of North Bradley and Rose Place.  

The suspect who fled after the shooting was originally believed to have barricaded himself inside a residence located in the 400 block of West Bunny Avenue and Thornburg Street, but police later determined he never entered the home.

Residents living in the proximity of the home on West Bunny Avenue were ordered to shelter in place, in case the alleged suspect started opening fire during the incident. 

A five-hour standoff ensued, with SWAT officials and a K-9 unit responding to the home to clear the suspect vehicle, a tan Chevrolet Tahoe, that was found parked in front of the residence. Officials were able to match the description of the same car that reportedly fled the area where the alleged shooting on Bradley and Rose Place occurred just hours prior. Authorities took the suspect vehicle to process as evidence. 

A California Highway Patrol helicopter flew over the neighborhood for a few hours, also aiding in the search for the suspect.

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For several hours, Santa Maria Police ordered the alleged suspect to come out of the home, believing the suspect still was inside at that point. Officials finally obtained a search warrant just before 7 p.m. and made entry into the home nearly an hour later. As was later determined, the suspect never had been in the home. 

"It appears that this may be some type of a family dispute of one sort of another," Mengel said. "Detectives are still working through that aspect of the investigation." 

Thursday's shooting follows two this month. The first was during Labor Day weekend in the 2000 block of Lazo Way. Edward Jonathan Ramirez, 19, of Santa Maria was killed in the shooting. Just over a week later, during the early hours of Sept. 11, a man was critically injured following a shooting that occurred in the 900 block of West El Camino Street.