The man police suspect to have murdered a 19-year-old New York mother and her child in 2010 was arrested Friday, one day after being placed on the FBI's Ten Most Wanted list and surrendering to Nicaraguan authorities.

According to CNN, the FBI placed a $100,000 reward for the capture of whom they call an "enthusiastic murderer" -- Juan Elias Garcia.

FBI Assistant Director George Venizelos of the New York field office said in a statement that Garcia surrendered because of the pressure he felt from the incident's publicity.

"The pressure generated by this publicity was too much for Garcia to bear, resulting in his surrender and return to the United States," Venizelos said.

On Thursday, Garcia went to the U.S. Embassy in Managua, Nicaragua to surrender to authorities. He was transported to the U.S. by the FBI and arrested in New York.

Garcia is set to appear in a federal court on Monday, according to CNN.

"Garcia's callous disregard for human life resulted in the senseless murder of a young mother and her helpless 2-year-old son," Venizelos said in the FBI's Wanted Fugitive public notice Wednesday. "His appointment to the FBI's Top Ten list illustrates not only the seriousness of his crimes but our commitment to seeking justice for his victims."

Garcia, who was known as "Cruzito," was 17 years old at the time of the murder that occurred in Central Islip, N.Y., according to the notice.

He was believed to be hiding out in El Salvador and was alleged to be a member of the violent El Salvadorian gang, Mara Salvatrucha, most commonly known as MS-13, CNN reported.

Special Agent James Lopez said the alleged victim, Vanessa Argueta, was romantically involved with Garcia while also having ties to MS-13's rival gangs -- the 18th Street gang and the Latin Kings.

"They were going to kill her for disrespecting the gang," Lopez said in the FBI notice. "It is unacceptable for MS-13 member to have girls they associate with be involved with rival gang members."

According to the FBI, Garcia met with Argueta and her son for dinner the night of the alleged murder. He is believed to have coerced her into the woods where they were met with two other members of the MS-13 and executed the mother and her child using the same gun.