The son is being charged with capital murder, San Antonio police said.
Police in San Antonio, Texas, said Wednesday night that they arrested a father and son in the deaths of pregnant teenager Savanah Soto and her boyfriend after their bodies were found in a car at a apartment complex parking last week.
The two suspects arrested were Christopher Preciado, 19, and Ramon Preciado, 53, Sgt. Washington Moscoso told the media Wednesday night. The son will be charged with capital murder and the father with abuse of a corpse, Moscoso said. The sergeant said more charges are possible.
Last week, Soto and her boyfriend, Matthew Guerra, were found dead days after the Texas mom-to-be was scheduled to be induced.
Moscoso said Soto’s cell phone, collected at the scene, was critical information for agents. Detectives were able to use his phone to find a possible location of the suspect’s vehicle from surveillance video, which police previously released when he appealed for the public’s help, he said.
Police then found the vehicle and the home it was connected to, Moscoso said. The father opened the door and authorities questioned him and his son, the sergeant added.
Moscoso said that based on what they said during the interview, there was enough information for police to obtain a search warrant, which led to the charges Wednesday night.
The sergeant told media it appeared to have been a possible narcotics deal gone wrong.
The father was not there during the murders, according to Moscoso, but was called afterward.
When asked by a reporter if there would be charges in the death of Soto’s unborn child, Moscoso said detectives will speak with the district attorney, who will decide whether more charges will be added.
Both men were led to police vehicles waiting for them in front of the media, and police released their booking photos shortly after. It was not immediately clear if either man had legal representation.
Initially, police said an 18-year-old full-term pregnant woman and a 22-year-old man, believed to be Soto and her boyfriend, Matthew Guerra, were killed.They found dead in a Kia Optima in San Antonio last Tuesday. A fetus was also found dead, police said at the time. The vehicle would have probably been at that location for several days, according to authorities.
In the days after the discovery, the medical examiner identified the victims as Soto and Guerra, police said.
Both victims had gunshot wounds, police said.
Police released images last Thursday of two persons of interest wanted in connection with the case. One was caught driving the victims’ Kia Optima and the other was seen driving a dark-colored pickup truck, police said.
Soto, 18, was last seen Dec. 22 in Leon Valley, according to the Texas Department of Public Safety. The agency issued a CLEAR Alert (used to help authorities locate someone in imminent danger or missing involuntarily) for Soto on Monday.
The pregnant teen was past her due date, which “caused great concern among her family members after missing an essential medical appointment,” the Leon Valley Police Department previously said.
ABC News’ Meredith Deliso contributed to this report.