The suspect in the Dec. 13 mass shooting on the campus of Brown University and the shooting of MIT professor Nuno Loureiro has been identified as 48-year-old Claudio Manuel Neves Valente, who was found dead by suicide inside a Salem, New Hampshire storage unit on Thursday night. A tipster who encountered Valente on a sidewalk outside Brown University and posted about it on Reddit provided crucial information that led to police identifying the suspect. CBS News' Tom Hanson breaks down what we kno

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Dr. Sakshi Patel | dentist 🦷 on Instagram: "Why should we perform DOUBLE ASPIRATION? 🦷💉 Before delivering local anesthesia, it is crucial to confirm that the needle tip is not inside a blood vessel 🩸❌ 🔬 Aspiration = gently pulling back the syringe plunger to check for blood. 🩸 If blood appears ➝ it indicates intravascular placement. ⚠️ Injecting anesthetic into a blood vessel may cause dizziness, palpitations, or systemic toxicity. 💡 Why DOUBLE aspiration? Blood vessels are small, elastic