A suspicious package delivered to Steele Canyon High School that prompted a lockdown and the evacuation of one building Monday, contained only harmless party supplies, the San Diego County Sheriff's Department told 10News.Additionally, an official source close to the investigation confirmed to 10News that the package was addressed to the son of a woman apparently targeted by a recent pipe bomb explosion.Family members have confirmed to 10News that the son of Connie Hoagland, the woman injured last week in a pipe bomb blast as she started her truck outside a residential day care center, is a student at the school.The package -- delivered to the office by FedEx -- was reported to authorities at about 10:20 Monday morning by the school, Jan Caldwell, spokeswoman for the San Diego Sheriff's Department told 10News.According to 10News' media partners The San Diego Union-Tribune, the Hoagland family's pastor confirmed Jonathan Hoagland had ordered the party favors for an event at the school.It is too early to know if the package is linked to any of the recent bomb scares, Caldwell said at about 11:00 a.m. She also stressed that students at the school, which is located at 12440 Campo Road in Spring Valley, were safe and in no immediate danger.Sheriff's department officials asked Sky10 and other aircraft above the scene to leave the area while they conducted their investigation.San Diego County Sheriff Bill Gore told 10News, "There's plenty going on behind the scenes it's a tragedy and we're doing everything we can to solve this case."Neighbor Brandi Smith said it was an odd coincidence that a pipe bomb was found earlier this month in the street just two blocks away from the Hoagland's Rolando home."It's really bizarre because it's an extremely quite neighborhood, like there's never any cops. It's just a very quiet neighborhood," said Smith.10News reporter Nina Jimenez asked Gore, "What about tie-ins to other pipe bomb incidents?""Those have all been reported. We have not made a direct connection yet, but those are obviously leads we're covering," Gore responded."So are there enough similarities?" asked Jimenez."Not that I can discuss at this time, it would not be appropriate," replied Gore.Connie Hoagland remains in serious condition, but the pastor of her church said she's in good spirits but has multiple surgeries ahead of her."Any reason why she was targeted? [Was it at] random?" asked Jimenez."Part of the ongoing investigation," said Gore."So you can't tell me a lot right now," said Jimenez."I'm sorry," said Gore.Investigators are finished with the forensic examination of Hoagland's truck and do know more about the bomb itself, 10News learned."Have you learned anything more about the detonation of where this pipe bomb was located? Was it detonated remotely?" asked Jimenez."We have a lot of that information we've developed since it occurred, but it's not appropriate to discuss on camera," said Gore.Gore declined to discuss specifics off camera as well.Detectives who spent most of the day at Hoagland's husband's photography studio declined to discuss the case.