Justin Bieber's iPhone seized in egging probe January 16, 2014 -- Updated 2120 GMT (0520 HKT) Deputies took Bieber's phone when they raided his mansion Tuesday Bieber shouldn't worry about nude photos or "drug talk" text, detective says "It's just the egg matter," detective says Lil Za tweets: "the media is making me someone I'm not" Los Angeles (CNN) -- Justin Bieber's iPhone is being searched for clues about his alleged involvement in an egg attack on his neighbor's house, a detective told CNN Thursday. Sheriff's deputies took Bieber's personal smart phone when they used a felony search warrant to raid his mansion Tuesday morning, Los Angeles County Sheriff's Lt. David Thompson said. The sheriff's technical crew, which is also examining security video seized in the search, are looking for any evidence of Bieber "bragging or making fun of" the incident, Thompson said. Bieber should not worry about any nude photos or "drug talk" that may be among his text messages, he said. It's just the egg matter. "We're looking for anything that has to do with this particular incident," the detective said. The security video system in Bieber's mansion could be the best witness to alleged egg attack. "It was extensive," Thompson said of the system. Deputies seized the computer that recorded the video, he said. The alleged egg-tossing attack happened on the evening of Thursday, January 9, in the exclusive double-gated Oaks community of Calabasas, California. It is home to A-listers from entertainment and sports, including the mother and children of Michael Jackson. Deputies at the Lost Hills Sheriff's Station, which serves an affluent section of Los Angeles County just east of Malibu, have become familiar with Bieber, 19, since he moved into a $6.4 million home two years ago. The estimated $20,000 in damage to the neighbor's house would make it felony vandalism, which could carry prison time. Lil Za's lament Bieber house guest Lil Za -- a 20-year-old rapper whose real name is Xavier Smith -- is steaming over the media attention and legal troubles that followed his abrupt awakening Tuesday morning. Deputies found suspected illegal drugs "in plain view" of Lil Za when they entered his bedroom in Bieber's home, Thompson said. He was arrested on a felony drug charge. To make his bad day worse, he was also charged with felony vandalism after allegedly busting the telephone in the jail while he was waiting to be bailed out. Za tweeted this Thursday: "Honestly, the media is making me someone I'm not. But only those in my shoes can relate. ... These ppl get paid to make you look bad. Some stuff I've done has been wrong yes. but look at the position I'm in and the color of my skin. Cocaine? All this time I was home in tx nobody gave a f--k about what Za is doing ..soon as he gets to La he's all over the news. Thompson initially said the Texas native was found with cocaine, but later said the drugs were suspected to be Ecstasy -- aka Molly -- and Xanax.