Two suspects and three victims have died at a shooting at the San Diego Islamic Center on Monday as more details emerged. Investigators shared additional information about the shooting at 7050 Eckstrom Ave, just west of the 805 Freeway.Here are five things to know about the fatal shooting.1. Two suspects, who died of self-inflicted gunshots and were found in a vehicle near the mosque, were reportedly teenagers. They were believed to be ages 17 and 19, according to the FBI. Their names were not immediately released. It's unclear what motivated the shooting.CNN analyst Josh Campbell described the involvement of two shooters as "unusual."2. A security guard killed in the shooting was "pivotal" in preventing further deaths or harm.“One of the deceased is a security guard that works there and I think played a pivotal role in assisting from this being much worse,” San Diego Police Department Chief Scott Wahl told reporters.The security guard's name was not immediately released. It appears this guard prevented people from entering the location where a group of children was located. No children were hurt. Children were seen in footage holding hands and escorting the site.The suspects also shot at a gardener. The gardener was not injured, according to authorities.3. The FBI was investigating the incident as a hate crime. No known motive was immediately released. Authorities said they would investigate the incident as a hate crime until it's determined that it's not because it's a place of worship. 4. The location of the shooting is the largest Islamic center in San Diego. The mosque is about 9 miles north of San Diego and is the largest mosque in San Diego County, according to The Associated Press.5. Authorities were asking the public to contact them with additional information and tips. Anyone with information can visit at fbi.gov or call 1-800-CALL-FBI to report any information about the incident.