Lamar Odom sustained a couple of serious blows in recent weeks and friends of the former NBA player fear he might be suicidal as a result.

Jamie Sangouthai and Bobby Heyward died within a week of each other of drug-related causes, and both were close friends with Lamar Odom.

“Lamar hasn’t been seen this low since Khloe [Kardashian] walked out on him,” a source says. “He’s depressed and completely overwhelmed with grief, and that’s a dangerous combination.”

Khloe Kardashian has been very concerned about Lamar Odom since both Jamie and Bobby died, and both she and Kris Jenner reached out to him recently.

“Khloe has been desperate to get in touch with him, but he’s not answering her. He’s dropped off the map,” the source said of the Keeping Up With the Kardashians star.

Even though Lamar Odom and Khloe Kardashian are separated, they’re not divorced. Rumors circulate frequently about a reconciliation between the two, although Khloe was spotted partying with NBA star James Harden during the 4th of July weekend.

Hopefully someone has located Lamar Odom and ascertained that he is in good health and reasonable spirits. Sustaining the loss of not just one–but two–good friends within such a short period of time has got to be devastating. And since Lamar has a propensity toward drug abuse, there are no doubt concerns that he could have once again fallen off that proverbial wagon.

Those who fear Lamar Odom might be suicidal will no doubt search until they find him, and will likely call in help if they feel he is in dire shape.

Do you think Khloe Kardashian will come if called to Lamar’s side? Might these tragedies result in a coming back together of the former Khloe & Lamar stars?