Tatum O'Neal's ongoing drug addiction has her estranged from her children, family and friends, and her inner-circle extremely concerned for her well-being, RadarOnline.com is exclusively reporting.

Meanwhile, Tatum and her brother Redmond are slamming their father’s new new memoir, Both Of Us: My Life With Farrah, because it’s not an honest account of their tumultuous relationship with the Love Story star and just promotes what they describe as "Ryan's self-serving narcissistic tendencies," according to a source.

He was one of the cutest child stars of the 1990s, but Edward Furlong isn’t exactly breaking any hearts these days!

The Terminator 2 star, who has struggled with substance abuse problems and domestic disputes over the years, stepped out recently looking drastically different from his former self, and RadarOnline.com has the shocking photos.

A five-year-old boy who brought a very unusual item into ‘show-and-tell’ on Monday has landed his stepfather in prison.

Instead of a pet bunny or a toy truck, the boy brought 35-year-old Santos Roman’s jacket to the Barnum School, in Bridgeport, Connecticut, and plucked out 10 small plastic bags from the pocket, each containing five folds of heroin, reported the CTPost.com.

Tatum O'Neal's younger brother Redmond is paying for his sister's latest stint in rehab to the tune of a cool $100,000, RadarOnline.com is exclusively reporting.

We broke the news that Tatum,48, has voluntarily checked back into rehab after having a full-fledged cocaine relapse last month.

Disney star Cody Linley’s older brother Chad died in August and RadarOnline.com has exclusively learned it was from the toxic effects of heroin.

According to the Harris County Institute of Forensic Sciences in Texas, Chad’s manner of death was ruled an accident, but the cause was “Toxic effects of heroin.”

As RadarOnline.com was first to report, Chad, 29, was found in his Houston, Texas, apartment in August by his apartment manager.

Ryan O'Neal visited his son Redmond in his court ordered rehab facility, going against the written orders from Red’s doctor that he not have any contact with his father, RadarOnline.com is exclusively reporting.

Redmond, 26, was ordered back to rehab to undergo a one year treatment program on August 24 after his latest arrest for heroin possession.

The first day that Redmind arrived at the West Los Angeles facility, Ryan O'Neal decided to visit his son.  "Ryan was allowed to visit, against Redmond’s doctor’s orders, as it was thought the visit would be beneficial to Redmond," a source close to the situation told RadarOnline.com exclusively.

Redmond O'Neal formally pled no contest this morning to felony possession of heroin and firearms charges, and will be released from jail Wednesday and will enter a one year inpatient rehab treatment program, RadarOnline.com is exclusively reporting.

O'Neal had been in jail since his arrest two weeks ago, because of a prior conviction of heroin possession.

O'Neal's legal powerhouse team of Richard Pintal and Michael Brewer convinced Judge Keith Schwartz this morning that Redmond should go back to rehab, and not jail.

Redmond O'Neal wants to get additional drug treatment after his recent relapse which resulted in his arrest, RadarOnline.com is exclusively reporting.

Redmond is currently in jail in Los Angeles after he was charged with felony possession of heroin. He has a court appearance in front of Judge Keith Schwartz on Wednesday, at which time a date will be set for his preliminary hearing.

Redmond's sister Tatum, and father Ryan O'Neal will be at the hearing on Wednesday, a source close to the situation says: "Tatum and Ryan will both be in court to show their support for Redmond. He isn't allowed to have any visitors besides his lawyer, but Tatum just wants to see him, to make sure he is ok.

As Redmond O'Neal sits in a Los Angeles jail on felony drug and firearms charges, his sister, Tatum O'Neal, is vowing to do whatever it takes to help save her brother from his addiction to heroin, RadarOnline.com is exclusively reporting.

Redmond, 26, was arrested in Santa Monica, California on Tuesday, August 2 after cops saw him run a red light. After cops conducted a search of O'Neal's car, heroin was allegedly found.

The Los Angeles District Attorney wants Redmond O'Neal to go to state prison for his alleged probation violation, RadarOnline.com is exclusively reporting.

The troubled son of Ryan O'Neal and the late actress Farrah Fawcett is currently behind bars after being arrested last week for being in possession of heroin. A subsequent search warrant executed by law enforcement at Redmond's Venice Beach apartment after his arrest caused even more legal trouble for him when a gun was found. Redmond, a convicted felon, is prohibited under California law from owning a gun or even being in possession of one.